Removing perl mod test as it appears to be causing some ports to fail when they normally would not have.

configure.in

@@ -303,17 +303,6 @@ if test "$_perl_res" != 0; then
     AC_MSG_ERROR([Perl $PERL_VERSION or higher is required.])
 fi
 
-AC_MSG_CHECKING([for File::stat])
-$PERL -e 'use File::stat;'
-_perl_res=$?
-if test $_perl_res != 0; then
-    AC_MSG_RESULT([no])
-    AC_MSG_ERROR([Perl module File::stat not available. Make sure that you have a complete perl installation.])
-    MOZ_DISABLE_JAR_PACKAGING=1
-else
-    AC_MSG_RESULT([yes])
-fi
-
 AC_PATH_PROG(WHOAMI, whoami, :)
 AC_PATH_PROG(AUTOCONF, autoconf, :)
 AC_PATH_PROG(UNZIP, unzip, :)