Ports: Remove LibGL workarounds

Now that ports can find our OpenGL headers and shared library, remove
all configuration and patches that was previously needed to make ports
compile with LibGL.

Ports/scummvm/package.sh

@@ -27,7 +27,6 @@ icon_file='icons/scummvm.ico'
 
 export CPPFLAGS='-fvisibility=hidden'
 export FREETYPE2_CFLAGS="-I${SERENITY_INSTALL_ROOT}/usr/local/include/freetype2"
-export OPENGL_CFLAGS="-I${SERENITY_INSTALL_ROOT}/usr/include/LibGL"
 export SDL_CFLAGS="-I${SERENITY_INSTALL_ROOT}/usr/local/include/SDL2"
 
 function post_install() {

Ports/scummvm/patches/0001-Teach-configure-about-serenity.patch

@@ -1,23 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Jelle Raaijmakers <jelle@gmta.nl>
-Date: Sun, 9 Jan 2022 23:01:32 +0100
-Subject: [PATCH] Teach configure about serenity
-
----
- configure | 3 +++
- 1 file changed, 3 insertions(+)
-
-diff --git a/configure b/configure
-index 5c28f7e35038236debbdeb3c396ce65f1189b13d..5bbf819fe31d24ac215d59f730bd64eac69c0bfd 100755
---- a/configure
-+++ b/configure
-@@ -5843,6 +5843,9 @@ EOF
- 			mingw*)
- 				OPENGL_LIBS="-lopengl32"
- 				;;
-+			serenity*)
-+				OPENGL_LIBS="-lgl"
-+				;;
- 			*)
- 				OPENGL_LIBS="-lGL"
- 				;;

Ports/scummvm/patches/ReadMe.md

@@ -1,7 +0,0 @@
-# Patches for scummvm on SerenityOS
-
-## `0001-Teach-configure-about-serenity.patch`
-
-Teach configure about serenity
-
-