Removed files that are no longer used and regenerated the Makefiles so they are no longer dependent on the removed files.

Hidden some seldom-used dependencies in static_mutex.hpp to reduce library footprint when extracted with bcp.

[SVN r40427]

libs/regex

@@ -1 +1 @@
-Subproject commit 816f0ba137957912b1c50a46571b811f56b353dc
+Subproject commit 22d32e97c967d8df3d3c94a323c2bda6bba092dd