[fuchsia] Remove deprecation warning suppression

These were added in flutter#50358 as we were originally planning on removing
the vfs::ComposedPseudoDir and vfs::LazyDir types from the SDK VFS.
However, we have dropped the deprecation in https://fxrev.dev/1123733
and are supporting these at all current API levels again.

Author: Breakthrough

shell/platform/fuchsia/dart_runner/dart_component_controller.cc

@@ -215,15 +215,10 @@ bool DartComponentController::CreateAndBindNamespace() {
   // That will prevent FL-175 for public directory
   fdio_service_connect_at(dart_outgoing_dir_ptr_.channel().get(), "svc",
                           dart_public_dir.NewRequest().TakeChannel().release());
-
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wdeprecated-declarations"
-
+                          
   auto composed_service_dir = std::make_unique<vfs::ComposedServiceDir>();
   composed_service_dir->set_fallback(std::move(dart_public_dir));
 
-#pragma clang diagnostic pop
-
   // Clone and check if client is servicing the directory.
   dart_outgoing_dir_ptr_->Clone(
       fuchsia::io::OpenFlags::DESCRIBE |

shell/platform/fuchsia/flutter/component_v2.cc

@@ -259,14 +259,9 @@ ComponentV2::ComponentV2(
   fdio_service_connect_at(directory_ptr_.channel().get(), "svc",
                           request.release());
 
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wdeprecated-declarations"
-
   auto composed_service_dir = std::make_unique<vfs::ComposedServiceDir>();
   composed_service_dir->set_fallback(std::move(flutter_public_dir));
 
-#pragma clang diagnostic pop
-
   // Clone and check if client is servicing the directory.
   directory_ptr_->Clone(fuchsia::io::OpenFlags::DESCRIBE |
                             fuchsia::io::OpenFlags::CLONE_SAME_RIGHTS,

shell/platform/fuchsia/runtime/dart/utils/vmservice_object.h

@@ -9,9 +9,6 @@
 
 namespace dart_utils {
 
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wdeprecated-declarations"
-
 class VMServiceObject : public vfs::LazyDir {
  public:
   static constexpr const char* kDirName = "DartVM";
@@ -24,8 +21,6 @@ class VMServiceObject : public vfs::LazyDir {
                       std::string name) const override;
 };
 
-#pragma clang diagnostic pop
-
 }  // namespace dart_utils
 
 #endif  // FLUTTER_SHELL_PLATFORM_FUCHSIA_RUNTIME_DART_UTILS_VMSERVICE_OBJECT_H_