Snpemodel: Clean up after #23772 (#23780)

* #clean up snpemodel after #23772

* Leave benchmark remove loop

selfdrive/modeld/runners/snpemodel.cc

@@ -159,14 +159,11 @@ void SNPEModel::execute(float *net_input_buf, int buf_size) {
       float *outputs_golden = (float *)malloc(output_size*sizeof(float));
       memcpy(outputs_golden, output, output_size*sizeof(float));
       memset(output, 0, output_size*sizeof(float));
-
-      for (int i = 0; i < 5; i++) {
-        memset(recurrent, 0, recurrent_size*sizeof(float));
-        uint64_t start_time = nanos_since_boot();
-        thneed->execute(inputs, output);
-        uint64_t elapsed_time = nanos_since_boot() - start_time;
-        printf("ran model in %.2f ms\n", float(elapsed_time)/1e6);
-      }
+      memset(recurrent, 0, recurrent_size*sizeof(float));
+      uint64_t start_time = nanos_since_boot();
+      thneed->execute(inputs, output);
+      uint64_t elapsed_time = nanos_since_boot() - start_time;
+      printf("ran model in %.2f ms\n", float(elapsed_time)/1e6);
 
       if (memcmp(output, outputs_golden, output_size*sizeof(float)) == 0) {
         printf("thneed selftest passed\n");