Remove Critical Trace Support (#327)

* Delete core critical-trace files

* Update docs and README

* Update workflows

* Update testing

* Update cmake

* Remove critical trace usage in source code

* Update source/docs/critical_trace.md

- fix spelling

* Formatting

* Update bin/omnitrace-avail/avail.cpp

- statically allocate shared pointers for timemory manager and hash id/aliases to prevent use-after-free errors

source/bin/omnitrace-causal/impl.cpp

@@ -200,7 +200,6 @@ get_initial_environment()
     update_env(_env, "OMNITRACE_TRACE", false);
     update_env(_env, "OMNITRACE_PROFILE", false);
     update_env(_env, "OMNITRACE_USE_PROCESS_SAMPLING", false);
-    update_env(_env, "OMNITRACE_CRITICAL_TRACE", false);
     update_env(_env, "OMNITRACE_THREAD_POOL_SIZE",
                get_env<int>("OMNITRACE_THREAD_POOL_SIZE", 0));
     update_env(_env, "OMNITRACE_LAUNCHER", "omnitrace-causal");