libsysprof-analyze: add callgraph flags for thread-ids

This allows you to set a flag to show the thread id of what was recorded.

Use this to help disassociate similar threads in a process to figure out
which thread is consuming a majority of the Total time of that process.

src/tools/meson.build

@@ -56,12 +56,3 @@ if get_option('agent')
          install: true,
   )
 endif
-
-if get_option('gtk')
-  callgraph = executable('callgraph', ['callgraph.c'],
-    dependencies: [libsysprof_analyze_static_dep,
-                   dependency('gtk4', version: gtk_req_version)],
-          c_args: tools_cflags,
-         install: false,
-  )
-endif