Misc: Remove unneeded qualifications

Mostly done using the following ruby script:
Dir.glob('**/*.cpp').each { |file|
  next if file =~ %r{src/shared/qbs|/qmljs/}
  s = File.read(file)
  s.scan(/^using namespace (.*);$/) {
    ns = $1
    t = s.gsub(/^(.*)\b#{ns}::((?!Const)[A-Z])/) { |m|
      before = $1
      char = $2
      if before =~ /"|\/\/|\\|using|SIGNAL|SLOT|Q_/
        m
      else
        before + char
      end
    }
    if t != s
      puts file
      File.open(file, 'w').write(t)
    end
  }
}

Change-Id: I919da493d0629b719d328e5e71c96a29d230dfd1
Reviewed-by: Christian Kandeler <christian.kandeler@theqtcompany.com>
Reviewed-by: hjk <hjk@theqtcompany.com>

src/plugins/valgrind/memchecktool.cpp

@@ -146,7 +146,7 @@ bool MemcheckErrorFilterProxyModel::filterAcceptsRow(int sourceRow, const QModel
         foreach (Project *project, SessionManager::projects()) {
             validFolders << project->projectDirectory().toString();
             foreach (Target *target, project->targets()) {
-                foreach (const ProjectExplorer::DeployableFile &file,
+                foreach (const DeployableFile &file,
                          target->deploymentData().allFiles()) {
                     if (file.isExecutable())
                         validFolders << file.remoteDirectory();
@@ -519,7 +519,7 @@ void MemcheckTool::loadExternalXmlLogFile()
     parser->parse(logFile); // ThreadedParser owns the file
 }
 
-void MemcheckTool::parserError(const Valgrind::XmlProtocol::Error &error)
+void MemcheckTool::parserError(const Error &error)
 {
     m_errorModel->addError(error);
 }