MSBuild: Purge 32-bit targets

This has never been supported.

CMakeLists.txt

@@ -153,12 +153,12 @@ elseif("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "x86_64" OR "${CMAKE_SYSTEM_PROCESSO
   else()
     # Cross-compiling 32-bit build. 32-bit hosts are not supported.
     set(CPU_ARCH_X86 TRUE)
-    message("Building x86_32 binaries [not supported].")
+    message(FATAL_ERROR "Building x86_32 binaries is not supported.")
   endif()
 elseif("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "x86" OR "${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "i386" OR
        "${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "i686")
   set(CPU_ARCH_X86 TRUE)
-  message("Building x86_32 binaries [not supported].")
+  message(FATAL_ERROR "Building x86_32 binaries is not supported.")
 elseif("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "aarch64" OR "${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "arm64")
   if(CMAKE_SIZEOF_VOID_P EQUAL 8) # Might have an A64 kernel, e.g. Raspbian.
     set(CPU_ARCH_ARM64 TRUE)

dep/msvc/vsprops/Configurations.props

@@ -5,10 +5,6 @@
       <Configuration>DebugFast</Configuration>
       <Platform>ARM64</Platform>
     </ProjectConfiguration>
-    <ProjectConfiguration Include="DebugFast|Win32">
-      <Configuration>DebugFast</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
     <ProjectConfiguration Include="DebugFast|x64">
       <Configuration>DebugFast</Configuration>
       <Platform>x64</Platform>
@@ -17,10 +13,6 @@
       <Configuration>Debug</Configuration>
       <Platform>ARM64</Platform>
     </ProjectConfiguration>
-    <ProjectConfiguration Include="Debug|Win32">
-      <Configuration>Debug</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
     <ProjectConfiguration Include="Debug|x64">
       <Configuration>Debug</Configuration>
       <Platform>x64</Platform>
@@ -29,10 +21,6 @@
       <Configuration>ReleaseLTCG</Configuration>
       <Platform>ARM64</Platform>
     </ProjectConfiguration>
-    <ProjectConfiguration Include="ReleaseLTCG|Win32">
-      <Configuration>ReleaseLTCG</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
     <ProjectConfiguration Include="ReleaseLTCG|x64">
       <Configuration>ReleaseLTCG</Configuration>
       <Platform>x64</Platform>
@@ -41,10 +29,6 @@
       <Configuration>Release</Configuration>
       <Platform>ARM64</Platform>
     </ProjectConfiguration>
-    <ProjectConfiguration Include="Release|Win32">
-      <Configuration>Release</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
     <ProjectConfiguration Include="Release|x64">
       <Configuration>Release</Configuration>
       <Platform>x64</Platform>
@@ -53,10 +37,6 @@
       <Configuration>DebugFast-Clang</Configuration>
       <Platform>ARM64</Platform>
     </ProjectConfiguration>
-    <ProjectConfiguration Include="DebugFast-Clang|Win32">
-      <Configuration>DebugFast-Clang</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
     <ProjectConfiguration Include="DebugFast-Clang|x64">
       <Configuration>DebugFast-Clang</Configuration>
       <Platform>x64</Platform>
@@ -65,10 +45,6 @@
       <Configuration>Debug-Clang</Configuration>
       <Platform>ARM64</Platform>
     </ProjectConfiguration>
-    <ProjectConfiguration Include="Debug-Clang|Win32">
-      <Configuration>Debug-Clang</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
     <ProjectConfiguration Include="Debug-Clang|x64">
       <Configuration>Debug-Clang</Configuration>
       <Platform>x64</Platform>
@@ -77,10 +53,6 @@
       <Configuration>ReleaseLTCG-Clang</Configuration>
       <Platform>ARM64</Platform>
     </ProjectConfiguration>
-    <ProjectConfiguration Include="ReleaseLTCG-Clang|Win32">
-      <Configuration>ReleaseLTCG-Clang</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
     <ProjectConfiguration Include="ReleaseLTCG-Clang|x64">
       <Configuration>ReleaseLTCG-Clang</Configuration>
       <Platform>x64</Platform>
@@ -89,10 +61,6 @@
       <Configuration>Release-Clang</Configuration>
       <Platform>ARM64</Platform>
     </ProjectConfiguration>
-    <ProjectConfiguration Include="Release-Clang|Win32">
-      <Configuration>Release-Clang</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
     <ProjectConfiguration Include="Release-Clang|x64">
       <Configuration>Release-Clang</Configuration>
       <Platform>x64</Platform>