[vpr][route][crr] remove thread pool

Author: amin1377

vpr/src/route/rr_graph_generation/tileable_rr_graph/crr_generator/crr_generator.cpp

@@ -52,12 +52,6 @@ void CRRGraphGenerator::initialize_components() {
                                                                  node_lookup_,
                                                                  sb_manager_);
 
-    // Initialize thread pool if parallel processing is enabled
-    VTR_ASSERT(crr_opts_.crr_num_threads > 0);
-    thread_pool_ = std::make_unique<CRRThreadPool>(crr_opts_.crr_num_threads);
-    VTR_LOG("CRR Graph Generator: Parallel processing enabled with %lu threads\n",
-            thread_pool_->get_thread_count());
-
     VTR_LOG("CRR Graph Generator: All components initialized successfully\n");
 }
 

vpr/src/route/rr_graph_generation/tileable_rr_graph/crr_generator/crr_generator.h

@@ -47,7 +47,6 @@ class CRRGraphGenerator {
 
     std::unique_ptr<RRGraph> output_graph_;
     std::unique_ptr<CRRConnectionBuilder> connection_builder_;
-    std::unique_ptr<CRRThreadPool> thread_pool_;
     std::unique_ptr<XMLHandler> xml_handler_;
 
     // Processing methods