Remove: shaderc, spirv-cross & --enable-spirv-cross flag

Author: alexmercerind

packages/CMakeLists.txt

@@ -182,11 +182,7 @@ list(APPEND ep
     ffmpeg
     angle-headers
     mujs
-    spirv-headers
-    spirv-tools
-    spirv-cross
     glslang
-    shaderc
     libepoxy
     curl
     mpv

packages/mpv.cmake

@@ -31,7 +31,6 @@ ExternalProject_Add(mpv
         --enable-uchardet
         --enable-lcms2
         --enable-openal
-        --enable-spirv-cross
         --disable-libplacebo
         --disable-egl-angle-lib
         --prefix=${MINGW_INSTALL_PREFIX}