Revert "EMCC: Minor: Avoid seemingly unnecessary splice of compile_args"

This reverts commit b9530a4.

Author: kon72

refresh.template.py

@@ -786,7 +786,7 @@ def get_workspace_root(path_from_execroot: pathlib.PurePath):
 
     # We run the emcc process with the environment variable EM_COMPILER_WRAPPER to intercept the command line arguments passed to `clang`.
     emcc_process = subprocess.run(
-        compile_args,
+        [emcc_driver] + compile_args[1:],
         # MIN_PY=3.7: Replace PIPEs with capture_output.
         stdout=subprocess.PIPE,
         stderr=subprocess.PIPE,