Revert unrelated change

Author: uditagarwal97

sycl/source/detail/platform_impl.cpp

@@ -172,23 +172,21 @@ std::vector<platform> platform_impl::get_platforms() {
   std::vector<std::pair<platform, AdapterPtr>> PlatformsWithAdapter;
 
   // Then check backend-specific adapters
-  std::vector<platform> Platforms;
   for (auto &Adapter : Adapters) {
     const auto &AdapterPlatforms = getAdapterPlatforms(Adapter);
     for (const auto &P : AdapterPlatforms) {
-      Platforms.push_back(P);
       PlatformsWithAdapter.push_back({P, Adapter});
     }
   }
 
   // For the selected platforms register them with their adapters
-  // std::vector<platform> Platforms;
-  // for (auto &Platform : PlatformsWithAdapter) {
-  //   auto &Adapter = Platform.second;
-  //   std::lock_guard<std::mutex> Guard(*Adapter->getAdapterMutex());
-  //   Adapter->getPlatformId(getSyclObjImpl(Platform.first)->getHandleRef());
-  //   Platforms.push_back(Platform.first);
-  // }
+  std::vector<platform> Platforms;
+  for (auto &Platform : PlatformsWithAdapter) {
+    auto &Adapter = Platform.second;
+    std::lock_guard<std::mutex> Guard(*Adapter->getAdapterMutex());
+    Adapter->getPlatformId(getSyclObjImpl(Platform.first)->getHandleRef());
+    Platforms.push_back(Platform.first);
+  }
 
   // This initializes a function-local variable whose destructor is invoked as
   // the SYCL shared library is first being unloaded.