staging: rtl8188eu: refactor if else statement

Refactor if else statement to clear checkpatch warnings.
WARNING: else is not generally useful after a break or return
WARNING: line over 80 characters
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/core/rtw_mlme.c

@@ -1758,12 +1758,9 @@ int rtw_restruct_sec_ie(struct adapter *adapter, u8 *in_ie, u8 *out_ie, uint in_
 	}
 
 	iEntry = SecIsInPMKIDList(adapter, pmlmepriv->assoc_bssid);
-	if (iEntry < 0) {
-		return ielength;
-	} else {
-		if (authmode == _WPA2_IE_ID_)
-			ielength = rtw_append_pmkid(adapter, iEntry, out_ie, ielength);
-	}
+	if (iEntry >= 0 && authmode == _WPA2_IE_ID_)
+		ielength = rtw_append_pmkid(adapter, iEntry, out_ie, ielength);
+
 	return ielength;
 }