fiptool: Remove unreferenced variable `toc_entries_len`

Change-Id: If279680a71e7fa1f801d79b8bc2cd47cd9905d33
Signed-off-by: dp-arm <dimitris.papastamos@arm.com>
diff --git a/tools/fiptool/tbbr_config.c b/tools/fiptool/tbbr_config.c
index c4b5519..7e5e0a3 100644
--- a/tools/fiptool/tbbr_config.c
+++ b/tools/fiptool/tbbr_config.c
@@ -145,5 +145,3 @@
 		.cmdline_name = NULL,
 	}
 };
-
-size_t toc_entries_len = sizeof(toc_entries) / sizeof(toc_entries[0]);
diff --git a/tools/fiptool/tbbr_config.h b/tools/fiptool/tbbr_config.h
index 0cf8e7f..e1246c4 100644
--- a/tools/fiptool/tbbr_config.h
+++ b/tools/fiptool/tbbr_config.h
@@ -45,6 +45,5 @@
 } toc_entry_t;
 
 extern toc_entry_t toc_entries[];
-extern size_t toc_entries_len;
 
 #endif /* __TBBR_CONFIG_H__ */