Libraries: Use default constructors/destructors in LibGemini

https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#cother-other-default-operation-rules

"The compiler is more likely to get the default semantics right and
you cannot implement these functions better than the compiler."

Userland/Libraries/LibGemini/Document.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020, the SerenityOS developers.
+ * Copyright (c) 2020-2022, the SerenityOS developers.
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
@@ -20,7 +20,7 @@ public:
     {
     }
 
-    virtual ~Line();
+    virtual ~Line() = default;
 
     virtual String render_to_html() const = 0;
 
@@ -56,14 +56,14 @@ public:
         : Line(move(line))
     {
     }
-    virtual ~Text() override;
+    virtual ~Text() override = default;
     virtual String render_to_html() const override;
 };
 
 class Link : public Line {
 public:
     Link(String line, const Document&);
-    virtual ~Link() override;
+    virtual ~Link() override = default;
     virtual String render_to_html() const override;
 
 private:
@@ -77,7 +77,7 @@ public:
         : Line(move(line))
     {
     }
-    virtual ~Preformatted() override;
+    virtual ~Preformatted() override = default;
     virtual String render_to_html() const override;
 };
 
@@ -87,7 +87,7 @@ public:
         : Line(move(line))
     {
     }
-    virtual ~UnorderedList() override;
+    virtual ~UnorderedList() override = default;
     virtual String render_to_html() const override;
 };
 
@@ -104,7 +104,7 @@ public:
         , m_kind(kind)
     {
     }
-    virtual ~Control() override;
+    virtual ~Control() override = default;
     virtual String render_to_html() const override;
 
 private:
@@ -118,7 +118,7 @@ public:
         , m_level(level)
     {
     }
-    virtual ~Heading() override;
+    virtual ~Heading() override = default;
     virtual String render_to_html() const override;
 
 private:

Userland/Libraries/LibGemini/GeminiRequest.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020, the SerenityOS developers.
+ * Copyright (c) 2020-2022, the SerenityOS developers.
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
@@ -10,14 +10,6 @@
 
 namespace Gemini {
 
-GeminiRequest::GeminiRequest()
-{
-}
-
-GeminiRequest::~GeminiRequest()
-{
-}
-
 ByteBuffer GeminiRequest::to_raw_request() const
 {
     StringBuilder builder;

Userland/Libraries/LibGemini/GeminiRequest.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020, the SerenityOS developers.
+ * Copyright (c) 2020-2022, the SerenityOS developers.
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
@@ -15,8 +15,8 @@ namespace Gemini {
 
 class GeminiRequest {
 public:
-    GeminiRequest();
+    GeminiRequest() = default;
-    ~GeminiRequest();
+    ~GeminiRequest() = default;
 
     const URL& url() const { return m_url; }
     void set_url(const URL& url) { m_url = url; }

Userland/Libraries/LibGemini/GeminiResponse.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020, the SerenityOS developers.
+ * Copyright (c) 2020-2022, the SerenityOS developers.
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
@@ -14,8 +14,4 @@ GeminiResponse::GeminiResponse(int status, String meta)
 {
 }
 
-GeminiResponse::~GeminiResponse()
-{
-}
-
 }

Userland/Libraries/LibGemini/GeminiResponse.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020, the SerenityOS developers.
+ * Copyright (c) 2020-2022, the SerenityOS developers.
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
@@ -13,7 +13,7 @@ namespace Gemini {
 
 class GeminiResponse : public Core::NetworkResponse {
 public:
-    virtual ~GeminiResponse() override;
+    virtual ~GeminiResponse() override = default;
     static NonnullRefPtr<GeminiResponse> create(int status, String meta)
     {
         return adopt_ref(*new GeminiResponse(status, meta));

Userland/Libraries/LibGemini/Job.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020, the SerenityOS developers.
+ * Copyright (c) 2020-2022, the SerenityOS developers.
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
@@ -18,10 +18,6 @@ Job::Job(const GeminiRequest& request, Core::Stream::Stream& output_stream)
 {
 }
 
-Job::~Job()
-{
-}
-
 void Job::start(Core::Stream::Socket& socket)
 {
     VERIFY(!m_socket);

Userland/Libraries/LibGemini/Job.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020, the SerenityOS developers.
+ * Copyright (c) 2020-2022, the SerenityOS developers.
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
@@ -18,7 +18,7 @@ class Job : public Core::NetworkJob {
 
 public:
     explicit Job(const GeminiRequest&, Core::Stream::Stream&);
-    virtual ~Job() override;
+    virtual ~Job() override = default;
 
     virtual void start(Core::Stream::Socket&) override;
     virtual void shutdown(ShutdownMode) override;

Userland/Libraries/LibGemini/Line.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020, the SerenityOS developers.
+ * Copyright (c) 2020-2022, the SerenityOS developers.
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
@@ -17,19 +17,11 @@ String Text::render_to_html() const
     return builder.build();
 }
 
-Text::~Text()
-{
-}
-
 String Heading::render_to_html() const
 {
     return String::formatted("<h{}>{}</h{}>", m_level, escape_html_entities(m_text.substring_view(m_level, m_text.length() - m_level)), m_level);
 }
 
-Heading::~Heading()
-{
-}
-
 String UnorderedList::render_to_html() const
 {
     // 1.3.5.4.2 "Advanced clients can take the space of the bullet symbol into account"
@@ -41,9 +33,6 @@ String UnorderedList::render_to_html() const
     builder.append("</li>");
     return builder.build();
 }
-UnorderedList::~UnorderedList()
-{
-}
 
 String Control::render_to_html() const
 {
@@ -62,9 +51,6 @@ String Control::render_to_html() const
         return "";
     }
 }
-Control::~Control()
-{
-}
 
 Link::Link(String text, const Document& document)
     : Line(move(text))
@@ -86,9 +72,6 @@ Link::Link(String text, const Document& document)
     if (m_name.is_null())
         m_name = m_url.to_string();
 }
-Link::~Link()
-{
-}
 
 String Link::render_to_html() const
 {
@@ -109,12 +92,5 @@ String Preformatted::render_to_html() const
 
     return builder.build();
 }
-Preformatted::~Preformatted()
-{
-}
-
-Line::~Line()
-{
-}
 
 }