Removed obsolete warnings about MIT licensed SIMD code

We no longer use the code this was warning about

CMakeLists.txt

@@ -308,7 +308,6 @@ dep_option(SDL_SSE4_1              "Use SSE4.1 assembly routines" ON "SDL_ASSEMB
 dep_option(SDL_SSE4_2              "Use SSE4.2 assembly routines" ON "SDL_ASSEMBLY;SDL_CPU_X86 OR SDL_CPU_X64" OFF)
 dep_option(SDL_MMX                 "Use MMX assembly routines" ON "SDL_ASSEMBLY;SDL_CPU_X86 OR SDL_CPU_X64" OFF)
 dep_option(SDL_ALTIVEC             "Use Altivec assembly routines" ON "SDL_ASSEMBLY;SDL_CPU_POWERPC32 OR SDL_CPU_POWERPC64" OFF)
-dep_option(SDL_ARMSIMD             "Use SIMD assembly blitters on ARM" OFF "SDL_ASSEMBLY;SDL_CPU_ARM32" OFF)
 dep_option(SDL_ARMNEON             "Use NEON assembly routines" ON "SDL_ASSEMBLY;SDL_CPU_ARM32 OR SDL_CPU_ARM64" OFF)
 dep_option(SDL_LSX                 "Use LSX assembly routines" ON "SDL_ASSEMBLY;SDL_CPU_LOONGARCH64" OFF)
 dep_option(SDL_LASX                "Use LASX assembly routines" ON "SDL_ASSEMBLY;SDL_CPU_LOONGARCH64" OFF)

cmake/macros.cmake

@@ -376,24 +376,6 @@ function(SDL_PrintSummary)
     message(STATUS "")
   endif()
 
-  if(WARN_ABOUT_ARM_SIMD_ASM_MIT)
-    message(STATUS "SDL is being built with ARM SIMD optimizations, which")
-    message(STATUS "uses code licensed under the MIT license. If this is a")
-    message(STATUS "problem, please disable that code by rerunning CMake with:")
-    message(STATUS "")
-    message(STATUS "    -DSDL_ARMSIMD=OFF")
-    message(STATUS "")
-  endif()
-
-  if(WARN_ABOUT_ARM_NEON_ASM_MIT)
-    message(STATUS "SDL is being built with ARM NEON optimizations, which")
-    message(STATUS "uses code licensed under the MIT license. If this is a")
-    message(STATUS "problem, please disable that code by rerunning CMake with:")
-    message(STATUS "")
-    message(STATUS "    -DSDL_ARMNEON=OFF")
-    message(STATUS "")
-  endif()
-
   if(UNIX AND NOT (ANDROID OR APPLE OR EMSCRIPTEN OR HAIKU OR RISCOS))
     if(NOT (HAVE_X11 OR HAVE_WAYLAND))
       if(NOT SDL_UNIX_CONSOLE_BUILD)