libpthread: Remove useless .cvsignore files

Signed-off-by: Markos Chandras <hwoarang@gentoo.org>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libpthread/linuxthreads/.cvsignore

@@ -1,3 +0,0 @@
-.cvsignore
-*.os
-Makefile.in

libpthread/linuxthreads/sysdeps/pthread/.cvsignore

@@ -1,2 +0,0 @@
-.cvsignore
-*.os

libpthread/linuxthreads/sysdeps/unix/sysv/linux/.cvsignore

@@ -1,2 +0,0 @@
-.cvsignore
-*.os

libpthread/linuxthreads_db/.cvsignore

@@ -1,5 +0,0 @@
-.cvsignore
-.svn
-*.os
-Makefile
-Makefile.in