Remove workaround from test

Author: adrian-prantl

test/DebugInfo/variadic-generics-count.swift

@@ -1,9 +1,6 @@
 // RUN: %target-swift-frontend -emit-ir %s -g -o - \
 // RUN:    -enable-experimental-feature VariadicGenerics \
-// RUN:    -parse-as-library -module-name a \
-// RUN:    -disable-round-trip-debug-types | %FileCheck %s
-// FIXME:  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ remove this!
-//         rdar://105021109
+// RUN:    -parse-as-library -module-name a | %FileCheck %s
 
 public func f1<T...>(ts: repeat each T) {
   // CHECK: define {{.*}} @"$s1a2f12tsyxxQp_tlF"(%swift.opaque** {{.*}}, i{{32|64}} [[COUNT1_1:.*]], %swift.type** {{.*}})

test/DebugInfo/variadic-generics.swift

@@ -1,9 +1,6 @@
 // RUN: %target-swift-frontend -emit-ir %s -g -o - \
 // RUN:    -enable-experimental-feature VariadicGenerics \
-// RUN:    -parse-as-library -module-name a \
-// RUN:    -disable-round-trip-debug-types | %FileCheck %s
-// FIXME:  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ remove this!
-//         rdar://105021109
+// RUN:    -parse-as-library -module-name a | %FileCheck %s
 
 public func foo<T...>(args: repeat each T) {
   // CHECK: define {{.*}} @"$s1a3foo4argsyxxQp_tlF"