Revert "Don't let check_disk hang on hanging file systems"

This reverts commit 6986aa1d0a352d8d02eed4896034631fffd25a27.  That
commit leads to issues on non-Linux systems, and it seems to not
(always) work as expected on Linux, either.

Conflicts:
	plugins/Makefile.am
	plugins/check_disk.c

Closes #1377 and closes #1329.

1 files changed, 0 insertions, 6 deletions

diff --git a/configure.ac b/configure.ac
index ce1728e3..29de4bdc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -156,12 +156,6 @@ AC_CHECK_LIB(socket,socket,SOCKETLIBS="$SOCKETLIBS -lsocket")
 AC_CHECK_LIB(resolv,main,SOCKETLIBS="$SOCKETLIBS -lresolv")
 AC_SUBST(SOCKETLIBS)
 
-dnl Check for POSIX thread libraries
-AC_CHECK_HEADERS(pthread.h)
-AC_CHECK_LIB(pthread,pthread_create,THREADLIBS="-lpthread",
-             AC_CHECK_LIB(pthread,pthread_create,THREADLIBS="-lpthread -lrt",-lrt))
-AC_SUBST(THREADLIBS)
-
 dnl
 dnl check for math-related functions needing -lm
 AC_CHECK_HEADERS(math.h)