Revert "workround coldfire sighander bug, heisenberg effect?"

This reverts commit 4858d9ba5e0d92b7e4e1086fd1b64fbbc4a72c93.

target/linux/patches/4.4.8/coldfire-debug.patch

@@ -1,11 +0,0 @@
-diff -Nur linux-4.4.8.orig/arch/m68k/kernel/signal.c linux-4.4.8/arch/m68k/kernel/signal.c
---- linux-4.4.8.orig/arch/m68k/kernel/signal.c	2016-04-20 08:44:02.000000000 +0200
-+++ linux-4.4.8/arch/m68k/kernel/signal.c	2016-05-08 13:32:39.067883350 +0200
-@@ -595,6 +595,7 @@
- 			       void __user *fp)
- {
- 	int fsize = frame_extra_sizes(formatvec >> 12);
-+	printk("debug: coldfire sighandler broken?..\n");
- 	if (fsize < 0) {
- 		/*
- 		 * user process trying to return with weird frame format