Remove NumLookupInModule counter

We now have an equivalent counter for
LookupInModuleRequest.

Author: hamishknight

include/swift/Basic/Statistics.def

@@ -147,9 +147,6 @@ FRONTEND_STATISTIC(AST, NumLookupQualifiedInModule)
 /// Number of qualified lookups into AnyObject.
 FRONTEND_STATISTIC(AST, NumLookupQualifiedInAnyObject)
 
-/// Number of lookups into a module and its imports.
-FRONTEND_STATISTIC(AST, NumLookupInModule)
-
 /// Number of local lookups into a module.
 FRONTEND_STATISTIC(AST, NumModuleLookupValue)
 

lib/AST/ModuleNameLookup.cpp

@@ -236,11 +236,7 @@ llvm::Expected<QualifiedLookupResult> LookupInModuleRequest::evaluate(
   assert(moduleScopeContext->isModuleScopeContext());
 
   auto &ctx = moduleOrFile->getASTContext();
-  auto *stats = ctx.Stats;
-  if (stats)
-    stats->getFrontendCounters().NumLookupInModule++;
-
-  FrontendStatsTracer tracer(stats, "lookup-in-module");
+  FrontendStatsTracer tracer(ctx.Stats, "lookup-in-module");
 
   QualifiedLookupResult decls;
   LookupByName lookup(ctx, resolutionKind, name, lookupKind);