manual strip broke crossDrv. no clue why it was ever added; should be automatic

pkgs/development/libraries/glibc/default.nix

@@ -72,9 +72,6 @@ in
       # Get rid of more unnecessary stuff.
       rm -rf $out/var $out/sbin/sln
 
-      for i in $out/lib/*.a; do
-          strip -S "$i"
-      done
       # Put libraries for static linking in a separate output.  Note
       # that libc_nonshared.a and libpthread_nonshared.a are required
       # for dynamically-linked applications.