[HTML5] Use regular unix FileAccess implementation.

(cherry picked from commit 1396c74734f289faf3e648ab232e691df6e963ae)

platform/javascript/os_javascript.cpp

@@ -818,7 +818,6 @@ int OS_JavaScript::get_current_video_driver() const {
 void OS_JavaScript::initialize_core() {
 
 	OS_Unix::initialize_core();
-	FileAccess::make_default<FileAccessBufferedFA<FileAccessUnix> >(FileAccess::ACCESS_RESOURCES);
 }
 
 Error OS_JavaScript::initialize(const VideoMode &p_desired, int p_video_driver, int p_audio_driver) {