Code deduplication GetQuotedString()

Moved single function GetQuotedString() to MyString

Signed-off-by: Sergey G. Brester <info@sebres.de>
Reviewed-by: Tino Reichardt <milky-7zip@mcmilk.de>

CPP/7zip/UI/Common/CompressCall2.cpp

@@ -59,17 +59,6 @@ static void ThrowException_if_Error(HRESULT res)
 
 #endif
 
-
-
- 
-UString GetQuotedString(const UString &s)
-{
-  UString s2 ('\"');
-  s2 += s;
-  s2 += '\"';
-  return s2;
-}
-
 static void ErrorMessage(LPCWSTR message)
 {
   MessageBoxW(g_HWND, message, L"7-Zip ZS", MB_ICONERROR);