std::size_t -> size_t

Removing std prefix from all size_t.

src/RageSoundReader_Vorbisfile.cpp

@@ -16,7 +16,7 @@
 #include <cstdint>
 #include <cstring>
 
-static std::size_t OggRageFile_read_func( void *ptr, std::size_t size, std::size_t nmemb, void *datasource )
+static size_t OggRageFile_read_func( void *ptr, size_t size, size_t nmemb, void *datasource )
 {
 	RageFileBasic *f = (RageFileBasic *) datasource;
 	return f->Read( ptr, size, nmemb );