Move the textual simplification of container type to debugger again

This is the only user, and likely will stay so for a while, and
eases the linking of the debugger autotests.

Change-Id: I822fa892f105a5b7985370b26e50aa94cac74bb3
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

src/libs/cplusplus/CppRewriter.h

@@ -113,11 +113,6 @@ CPLUSPLUS_EXPORT const Name *rewriteName(const Name *name,
                                          SubstitutionEnvironment *env,
                                          Control *control);
 
-// Simplify complicated STL template types, such as
-// 'std::basic_string<char,std::char_traits<char>,std::allocator<char> > '->
-// 'std::string'.
-CPLUSPLUS_EXPORT QString simplifySTLType(const QString &typeIn);
-
 } // namespace CPlusPlus
 
 #endif // CPPREWRITER_H