CMake: remove OpenAL dependency

src/CMakeLists.txt

@@ -99,7 +99,7 @@ if(${PLATFORM} MATCHES "PLATFORM_DESKTOP")
   if(APPLE)
     # TODO extract framework location and name from ${LIBS_PRIVATE}
     # and specify them as -F and -framework instead of hardcoding
-    foreach(F OpenGL OpenAL Cocoa)
+    foreach(F OpenGL Cocoa)
       set(PKG_CONFIG_LIBS_PRIVATE "${PKG_CONFIG_LIBS_PRIVATE} -framework ${F}")
     endforeach(F)
   endif()