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/DirectiveHandler.cpp b/src/compiler/translator/DirectiveHandler.cpp
index e468fd4..46e67f5 100644
--- a/src/compiler/translator/DirectiveHandler.cpp
+++ b/src/compiler/translator/DirectiveHandler.cpp
@@ -10,7 +10,6 @@
 
 #include "angle_gl.h"
 #include "common/debug.h"
-#include "compiler/translator/Common.h"
 #include "compiler/translator/Diagnostics.h"
 
 namespace sh
@@ -191,7 +190,7 @@
     }
     else
     {
-        std::stringstream stream = sh::InitializeStream<std::stringstream>();
+        std::stringstream stream;
         stream << version;
         std::string str = stream.str();
         mDiagnostics.error(loc, "version number not supported", str.c_str());