coverity: debugfs devfip remove comparisons to LONG_MAX

CID 353228:  Integer handling issues  (CONSTANT_EXPRESSION_RESULT)

The checks on size and offset_address in get_entry always resolve to
false provided those fields are long long int and cannot be greater
than LONG_MAX.
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
Change-Id: I0fac485a39ac4a40ae8c0d25a706ad74c795e130

lib/debugfs/devfip.c

 /*
- * Copyright (c) 2019, Arm Limited. All rights reserved.
+ * Copyright (c) 2019-2020, Arm Limited. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -103,10 +103,6 @@ static int get_entry(chan_t *c, struct fip_entry *entry)
 		return -1;
 	}
 
-	if ((entry->size > LONG_MAX) || (entry->offset_address > LONG_MAX)) {
-		return -1;
-	}
-
 	if (entry->size == 0) {
 		return 0;
 	}