Revert 1792965, 1792964, 1792962 (r1792961, r1792963 on trunk), was;

pthread_mutex_timedlock is broken on Solaris 10.
It can block without timeout in case of EDEADLK.
On Solaris 8 it does not exist, on Solaris 11
it is fixed. For Solaris 10 no patch is available.

Silence compiler warning "defined but not used"




git-svn-id: https://svn.apache.org/repos/asf/apr/apr/branches/1.6.x@1796066 13f79535-47bb-0310-9956-ffa450edef68
2 files changed