Revert "assertions"

This reverts commit 2509172.

src/lj_trace.c

@@ -37,8 +37,6 @@
 #include "lj_sysprof.h"
 #endif
 
-#include <assert.h>
-
 /* -- Error handling ------------------------------------------------------ */
 
 /* Synchronous abort with error message. */
@@ -628,16 +626,12 @@ static int trace_abort(jit_State *J)
       for (frame = J->L->base-1, pc = J->pc; ; frame = frame_prev(frame)) {
 	if (isluafunc(frame_func(frame))) {
 	  pos = proto_bcpos(funcproto(frame_func(frame)), pc);
-	  assert(1 != 1);
 	  break;
 	} else if (frame_prev(frame) <= bot) {
-	  assert(2 != 2);
 	  break;
 	} else if (frame_iscont(frame)) {
-	  assert(3 != 3);
 	  pc = frame_contpc(frame) - 1;
 	} else {
-	  assert(4 != 4);
 	  pc = frame_pc(frame) - 1;
 	}
       }