Unnecessary error stream redirection removed

Tests/UnitTests/utilities/ErrorStreamRedirect.h

-#ifndef ERRORSTREAMREDIRECT_H
-#define ERRORSTREAMREDIRECT_H
-
-#include <iostream>
-
-struct ErrorStreamRedirect {
-    ErrorStreamRedirect( std::streambuf* new_buffer )
-        : old( std::cerr.rdbuf(new_buffer) )
-    {}
-
-    ~ErrorStreamRedirect() {
-        std::cerr.rdbuf(old);
-    }
-
-private:
-    std::streambuf* old;
-};
-
-#endif // ERRORSTREAMREDIRECT_H

Tests/UnitTests/utilities/main_testlist.cpp

 #include "google_test.h"
-
 #include "testlist.h"
-#include "ErrorStreamRedirect.h"
 
 int main(int argc, char** argv)
 {
     ::testing::InitGoogleTest(&argc, argv);
 
-    // redirect std::cerr stream
-    std::stringstream oss;
-    ErrorStreamRedirect redirecter( oss.rdbuf() );
-    (void)redirecter;
-
     // run all google tests
     return RUN_ALL_TESTS();
 }