[libclang] Simplify indexing of module imports by handling implicit
imports via ImportDecls.

llvm-svn: 165160
diff --git a/clang/tools/libclang/Indexing.cpp b/clang/tools/libclang/Indexing.cpp
index 6b9abbc..6cf3a63 100644
--- a/clang/tools/libclang/Indexing.cpp
+++ b/clang/tools/libclang/Indexing.cpp
@@ -74,8 +74,7 @@
                                   StringRef RelativePath,
                                   const Module *Imported) {
     if (Imported) {
-      IndexCtx.importedModule(HashLoc, FileName, /*isIncludeDirective=*/true,
-                              Imported);
+      // We handle implicit imports via ImportDecls.
       return;
     }