Remove redundant append into WHITELIST_PATTERNS (#2935)

- pyconfig.h was appended twice into WHITELIST_PATTERNS
- Regression from commit a636b88

Co-authored-by: Shyamnath Premnadh <Shyamnath.Premnadh@qt.io>

pythonforandroid/bootstraps/common/build/build.py

@@ -1052,6 +1052,4 @@ def _read_configuration():
 
 
 if __name__ == "__main__":
-    if get_bootstrap_name() in ('sdl2', 'webview', 'service_only'):
-        WHITELIST_PATTERNS.append('pyconfig.h')
     parse_args_and_make_package()