Revert "[BOLT] Add NamedRegionTimer to inferStaleProfile (#92621)"

This reverts commit 9f2313829f.

Creates a dependency cycle: lib/Rewrite depends on lib/Profile.

bolt/lib/Rewrite/RewriteInstance.cpp

@@ -235,9 +235,10 @@ UseGnuStack("use-gnu-stack",
   cl::ZeroOrMore,
   cl::cat(BoltCategory));
 
-cl::opt<bool> TimeRewrite("time-rewrite",
-                          cl::desc("print time spent in rewriting passes"),
-                          cl::Hidden, cl::cat(BoltCategory));
+static cl::opt<bool>
+    TimeRewrite("time-rewrite",
+                cl::desc("print time spent in rewriting passes"), cl::Hidden,
+                cl::cat(BoltCategory));
 
 static cl::opt<bool>
 SequentialDisassembly("sequential-disassembly",