Revert "Fix unit test for setting locale creating malformed HLSL shader code"

This reverts commit 5f662c0042703344eb0eef6d1c123e902e3aefbf.

Reason for revert: Some recent crashes related to streams, could be
related to this change.
https://bugs.chromium.org/p/chromium/issues/detail?id=932359

Original change's description:
> Fix unit test for setting locale creating malformed HLSL shader code
> Fix malformed HLSL shader code in other locales than classic
>
> Bug: angleproject:1433
> Change-Id: I30bad0bd0cfda465ec7200e48e12800d7d8efd26
> Reviewed-on: https://chromium-review.googlesource.com/c/1447862
> Reviewed-by: Geoff Lang <geofflang@chromium.org>
> Reviewed-by: Jamie Madill <jmadill@chromium.org>
> Commit-Queue: Jonah Ryan-Davis <jonahr@google.com>

TBR=geofflang@chromium.org,jmadill@chromium.org,jonahr@google.com

Bug: angleproject:1433
Change-Id: I28caa073b3996a95f3f233bed9dc91dc44263835
Reviewed-on: https://chromium-review.googlesource.com/c/1474624
Reviewed-by: Jonah Ryan-Davis <jonahr@google.com>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>
diff --git a/src/compiler/translator/Symbol.cpp b/src/compiler/translator/Symbol.cpp
index 52ad4f3..babda8c 100644
--- a/src/compiler/translator/Symbol.cpp
+++ b/src/compiler/translator/Symbol.cpp
@@ -115,7 +115,7 @@
         const TType *fieldType = field->type();
         if (IsSampler(fieldType->getBasicType()) || fieldType->isStructureContainingSamplers())
         {
-            std::stringstream fieldName = sh::InitializeStream<std::stringstream>();
+            std::stringstream fieldName;
             fieldName << namePrefix << "_" << field->name();
             TString fieldApiName = apiNamePrefix + ".";
             fieldApiName += field->name().data();