fix gpu check bug (#3866)

* fix gpu check bug
Signed-off-by: Ngodchen0212 <qingxiang.chen@zilliz.com>

* format code
Signed-off-by: Ngodchen0212 <qingxiang.chen@zilliz.com>

core/src/server/init/GpuChecker.cpp

@@ -188,11 +188,7 @@ GpuChecker::CheckGpuEnvironment() {
 
     char device_name[NVML_DEVICE_NAME_BUFFER_SIZE];
     int major, minor;
-    for (uint32_t i = 0; i < device_count; i++) {
-        if (gpu_sets.find(i) == gpu_sets.end()) {
-            continue;
-        }
-
+    for (uint32_t i = 0; i < gpu_sets.size(); i++) {
         nvmlDevice_t device;
         nvmlresult = nvmlDeviceGetHandleByIndex(i, &device);
         fiu_do_on("GpuChecker.CheckGpuEnvironment.nvml_get_device_handle_fail", nvmlresult = NVML_ERROR_UNKNOWN);