Meta: Remove i686 target

Toolchain/BuildClang.sh

@@ -9,7 +9,7 @@ echo "$DIR"
 
 PREFIX="$DIR/Local/clang/"
 BUILD="$DIR/../Build/"
-USERLAND_ARCHS="i686 x86_64"
+USERLAND_ARCHS="x86_64"
 ARCHS="$USERLAND_ARCHS aarch64"
 
 MD5SUM="md5sum"
@@ -286,7 +286,6 @@ pushd "$DIR/Build/clang"
     pushd llvm
         buildstep "llvm/configure" cmake "$DIR/Tarballs/$LLVM_NAME/llvm" \
             -G Ninja \
-            -DSERENITY_i686-pc-serenity_SYSROOT="$BUILD/i686clang/Root" \
             -DSERENITY_x86_64-pc-serenity_SYSROOT="$BUILD/x86_64clang/Root" \
             -DSERENITY_aarch64-pc-serenity_SYSROOT="$BUILD/aarch64clang/Root" \
             -DCMAKE_INSTALL_PREFIX="$PREFIX" \

Toolchain/CMake/LLVMConfig.cmake

@@ -25,7 +25,7 @@ set(LLVM_INSTALL_BINUTILS_SYMLINKS OFF CACHE BOOL "")
 set(CLANG_ENABLE_CLANGD OFF CACHE BOOL "")
 
 set(compiler_flags "-nostdlib -nostdlib++")
-foreach(target i686-pc-serenity;x86_64-pc-serenity;aarch64-pc-serenity)
+foreach(target x86_64-pc-serenity;aarch64-pc-serenity)
     list(APPEND targets "${target}")
 
     set(RUNTIMES_${target}_CMAKE_BUILD_TYPE Release CACHE STRING "")

Toolchain/Patches/gcc/0001-Add-a-gcc-driver-for-SerenityOS.patch

@@ -94,7 +94,7 @@ index 0000000000000000000000000000000000000000..17551aaa1a07e6c0b7365f9889937512
 +#endif
 +
 +/* Default arguments you want when running your
-+   i686-serenity-gcc/x86_64-serenity-gcc toolchain */
++   x86_64-serenity-gcc toolchain */
 +#undef LIB_SPEC
 +#define LIB_SPEC "-lc" /* link against C standard library */
 +

Toolchain/Patches/llvm/0003-Driver-Add-support-for-SerenityOS.patch

@@ -13,7 +13,6 @@ protection and position-independent code by default.
  clang/lib/Driver/CMakeLists.txt          |   1 +
  clang/lib/Driver/Driver.cpp              |   4 +
  clang/lib/Driver/ToolChain.cpp           |   2 +
- clang/lib/Driver/ToolChains/Arch/X86.cpp |   1 +
  clang/lib/Driver/ToolChains/Serenity.cpp | 336 +++++++++++++++++++++++
  clang/lib/Driver/ToolChains/Serenity.h   |  99 +++++++
  8 files changed, 467 insertions(+)
@@ -127,18 +126,6 @@ index 7a4319ea680f97dde074b21afa2ee6f75c350091..8db07d9dd0754bffeddf00afe365fe7d
    default:
      return getOS();
    }
-diff --git a/clang/lib/Driver/ToolChains/Arch/X86.cpp b/clang/lib/Driver/ToolChains/Arch/X86.cpp
-index cd7c014faa5e0d503adc9f2c30b83b3efbb7e315..004185d28816b8e8bb903612aa053cb883524fc5 100644
---- a/clang/lib/Driver/ToolChains/Arch/X86.cpp
-+++ b/clang/lib/Driver/ToolChains/Arch/X86.cpp
-@@ -113,6 +113,7 @@ std::string x86::getX86TargetCPU(const Driver &D, const ArgList &Args,
-   case llvm::Triple::OpenBSD:
-     return "i586";
-   case llvm::Triple::FreeBSD:
-+  case llvm::Triple::Serenity:
-     return "i686";
-   default:
-     // Fallback to p4.
 diff --git a/clang/lib/Driver/ToolChains/Serenity.cpp b/clang/lib/Driver/ToolChains/Serenity.cpp
 new file mode 100644
 index 0000000000000000000000000000000000000000..4fdf45a19eb2704d00a03e7b2f34f87f63a0a074