Remove asserts for debugging OSS-Fuzz

Signed-off-by: Gavin D. Howard <gavin@gavinhoward.com>

src/vm.c

@@ -693,6 +693,8 @@ bc_vm_shutdown(void)
 	bc_parse_free(&vm->prs);
 	bc_program_free(&vm->prog);
 
+	assert(false);
+
 	bc_slabvec_free(&vm->slabs);
 #endif // !BC_ENABLE_LIBRARY
 
@@ -1504,16 +1506,12 @@ bc_vm_exec(void)
 
 	assert(!BC_ENABLE_OSSFUZZ || BC_EXPR_EXIT == 0);
 
-	assert(vm->exprs.len);
-
 	// If there are expressions to execute...
 	if (vm->exprs.len)
 	{
 		// Process the expressions.
 		bc_vm_exprs();
 
-		assert(false);
-
 		// Sometimes, executing expressions means we need to quit.
 		if (!vm->no_exprs && vm->exit_exprs && BC_EXPR_EXIT) return;
 	}
@@ -1848,8 +1846,6 @@ bc_vm_atexit(BcStatus status)
 	bc_vec_free(&vm->jmp_bufs);
 #endif // BC_DEBUG
 
-	assert(false);
-
 	return s;
 }
 #endif // BC_ENABLE_LIBRARY