Example: Emscripten: Fix for compilation (filesystem module is required) (#2734)

examples/example_emscripten/Makefile

@@ -24,7 +24,8 @@ UNAME_S := $(shell uname -s)
 EMS = -s USE_SDL=2 -s WASM=1
 EMS += -s ALLOW_MEMORY_GROWTH=1 -s BINARYEN_TRAP_MODE=clamp
 EMS += -s DISABLE_EXCEPTION_CATCHING=1 -s NO_EXIT_RUNTIME=0
-EMS += -s ASSERTIONS=1 -s NO_FILESYSTEM=1
+EMS += -s ASSERTIONS=1
+#EMS += -s NO_FILESYSTEM=1 ## Getting "error: undefined symbol: $FS" if filesystem is removed
 #EMS += -s SAFE_HEAP=1    ## Adds overhead
 
 CPPFLAGS = -I../ -I../../