Explicitly ignore return value of sk_SSL_COMP_delete.

net/tools/flip_server/flip_in_mem_edsm_server.cc

Index: net/tools/flip_server/flip_in_mem_edsm_server.cc
diff --git a/net/tools/flip_server/flip_in_mem_edsm_server.cc b/net/tools/flip_server/flip_in_mem_edsm_server.cc
index c19d52e56416753b0669d86f5d08a59b7ffaa61e..4faa6d4b2aa9488b9b3f4b16f53b84bd35e16d57 100644
--- a/net/tools/flip_server/flip_in_mem_edsm_server.cc
+++ b/net/tools/flip_server/flip_in_mem_edsm_server.cc
@@ -253,7 +253,7 @@ void spdy_init_ssl(SSLState* state,
     int num_methods = sk_SSL_COMP_num(ssl_comp_methods);
     int i;
     for (i = 0; i < num_methods; i++) {
-      sk_SSL_COMP_delete(ssl_comp_methods, i);
+      static_cast<void>(sk_SSL_COMP_delete(ssl_comp_methods, i));
     }
   }
 }