af_key: remove unnecessary break after return

Signed-off-by: NFabian Frederick <fabf@skynet.be>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/key/af_key.c

@@ -405,7 +405,6 @@ static int verify_address_len(const void *p)
 		 * XXX When it can, remove this -EINVAL.  -DaveM
 		 */
 		return -EINVAL;
-		break;
 	}
 
 	return 0;
@@ -536,7 +535,6 @@ pfkey_satype2proto(uint8_t satype)
 		return IPPROTO_ESP;
 	case SADB_X_SATYPE_IPCOMP:
 		return IPPROTO_COMP;
-		break;
 	default:
 		return 0;
 	}
@@ -553,7 +551,6 @@ pfkey_proto2satype(uint16_t proto)
 		return SADB_SATYPE_ESP;
 	case IPPROTO_COMP:
 		return SADB_X_SATYPE_IPCOMP;
-		break;
 	default:
 		return 0;
 	}