Revert "Implement a rudimentary form of generic lambdas."

This reverts commit 606f5d7a99b11957e057e4cd1f55f931f66a42c7.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@189004 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Serialization/ASTReader.cpp b/lib/Serialization/ASTReader.cpp
index 5b1a608..462c2d3 100644
--- a/lib/Serialization/ASTReader.cpp
+++ b/lib/Serialization/ASTReader.cpp
@@ -4740,9 +4740,7 @@
     QualType Deduced = readType(*Loc.F, Record, Idx);
     bool IsDecltypeAuto = Record[Idx++];
     bool IsDependent = Deduced.isNull() ? Record[Idx++] : false;
-    bool IsParameterPack = Record[Idx++];
-    return Context.getAutoType(Deduced, IsDecltypeAuto, IsDependent, 
-                                                      IsParameterPack);
+    return Context.getAutoType(Deduced, IsDecltypeAuto, IsDependent);
   }
 
   case TYPE_RECORD: {