clean up variable definitions

Author: jpbland1

src/internal.c

@@ -21162,18 +21162,19 @@ int ProcessReplyEx(WOLFSSL* ssl, int allowSocketErr)
                 ssl->keys.decryptedCur = 1;
 #ifdef WOLFSSL_TLS13
                 if (ssl->options.tls1_3) {
-                    /* check that the end of the logical length doesn't extend
-                     * past the real buffer */
+                    word16 i;
                     word32 boundsCheck = (ssl->buffers.inputBuffer.idx +
                         ssl->curSize - ssl->specs.aead_mac_size);
+                    /* check that the end of the logical length doesn't extend
+                     * past the real buffer */
                     if (boundsCheck > ssl->buffers.inputBuffer.length ||
                         boundsCheck == 0) {
                         WOLFSSL_ERROR(BUFFER_ERROR);
                         return BUFFER_ERROR;
                     }
 
                     /* end of plaintext */
-                    word16 i = (word16)(boundsCheck);
+                    i = (word16)(boundsCheck);
 
                     /* Remove padding from end of plain text. */
                     for (--i; i > ssl->buffers.inputBuffer.idx; i--) {