Revert "cs_disasm_ex() should verify handle->disasm() to catch the issue that this API is still called after cs_close(). bug reported by Gul"

This reverts commit 2edef8f27cf903f7a6c8b40e6207aa0d635cb405.
diff --git a/cs.c b/cs.c
index 07f28a4..4f561a1 100644
--- a/cs.c
+++ b/cs.c
@@ -320,7 +320,7 @@
 	void *total = NULL;
 	size_t total_size = 0;
 
-	if (!handle || handle->disasm == NULL) {
+	if (!handle) {
 		// FIXME: how to handle this case:
 		// handle->errnum = CS_ERR_HANDLE;
 		return 0;