Revert "L10n: gender aliases for user namespaces in French"

This incorrectly also set gender based namespaces for at least 12 more
locales. That is too high negative impact. Please resubmit without
also impacting languages that fall back to French by adding:

 // Remove French aliases
 $namespaceGenderAliases = array();

See MessagesLbe.php for example.

This reverts commit cadbf1fc5fd094bcc5e5e4055ddce4c8dec84020.

Change-Id: I5825f750a58dd196f907ad848c74f82130fd857d
Merge "Revert "L10n: gender aliases for user namespaces in French""