[CMAKE] Remove __inline substitutions

All supported compilers can do C99 now, this is not needed anymore.

CMakeLists.txt

@@ -140,10 +140,6 @@ if(NOT CMAKE_CROSSCOMPILING)
         if(MSVC_VERSION GREATER 1699)
             add_definitions(/D_ALLOW_KEYWORD_MACROS)
         endif()
-        if(NOT USE_CLANG_CL)
-            # FIXME: Inspect
-            add_definitions(/Dinline=__inline)
-        endif()
     endif()
     add_subdirectory(sdk/include/host)
 

sdk/cmake/gcc.cmake

@@ -166,8 +166,6 @@ elseif(ARCH STREQUAL "arm")
     add_definitions(-D__MSVCRT__) # DUBIOUS
 endif()
 
-add_definitions(-D_inline=__inline)
-
 # Fix build with GLIBCXX + our c++ headers
 add_definitions(-D_GLIBCXX_HAVE_BROKEN_VSWPRINTF)
 

sdk/cmake/msvc.cmake

@@ -30,7 +30,7 @@ if(ARCH STREQUAL "i386")
     add_definitions(/DWIN32 /D_WINDOWS)
 endif()
 
-add_definitions(/Dinline=__inline /D__STDC__=1)
+add_definitions(/D__STDC__=1)
 
 # Ignore any "standard" include paths, and do not use any default CRT library.
 if(NOT USE_CLANG_CL)