Remove unused line, fix CI

Author: ccotter

CMakeLists.txt

@@ -151,7 +151,8 @@ else()
 endif()
 
 # Build relacy tests by default only for GNU compiler and if tests are enabled
-if(${STDEXEC_BUILD_TESTS} AND stdexec_compiler_frontend STREQUAL "GNU")
+# It will take work to get other platforms to work in the future.
+if(${STDEXEC_BUILD_TESTS} AND ${CMAKE_CXX_COMPILER_ID} STREQUAL "GNU")
     set(STDEXEC_BUILD_RELACY_TESTS_DEFAULT ON)
 else()
     set(STDEXEC_BUILD_RELACY_TESTS_DEFAULT OFF)

test/rrd/intrusive_mpsc_queue.cpp

@@ -271,7 +271,6 @@ struct mpsc_five_producers_ordered : rl::test_suite<mpsc_five_producers_ordered,
         queue.push_back(&nodes[start_idx + i]);
       }
     } else {
-      // int count = 0;
       while (consumed_count < TOTAL_ITEMS) {
         test_node* node = queue.pop_front();
         if (node) {