m32r: remove abort()

Commit 7c2c11b208be ("arch: define weak abort()") has introduced a weak
abort() which is common for all arch.  And, so we will not need arch
specific abort which has the same code as the weak abort().  Remove the
abort() for m32r.

Link: http://lkml.kernel.org/r/1516912339-5665-1-git-send-email-sudipm.mukherjee@gmail.com
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/m32r/kernel/traps.c

@@ -115,14 +115,6 @@ static void set_eit_vector_entries(void)
 	_flush_cache_copyback_all();
 }
 
-void abort(void)
-{
-	BUG();
-
-	/* if that doesn't kill us, halt */
-	panic("Oops failed to kill thread");
-}
-
 void __init trap_init(void)
 {
 	set_eit_vector_entries();