Attempt to move mixer to audio common, it's a bit more complicated than I expected

so please check I didn't break anything in hle



git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@2756 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Plugins/Plugin_DSP_LLE-testing/Src/Logging/UCode_AXStructs.h

@@ -14,8 +14,6 @@
 
 // Official SVN repository and contact information can be found at
 // http://code.google.com/p/dolphin-emu/
-#ifdef _WIN32
-
 
 #ifndef UCODE_AX_STRUCTS
 #define UCODE_AX_STRUCTS
@@ -142,5 +140,4 @@ enum {
 
 #endif
 
-#endif // win32