use clear() instead of erase(begin, end)

Change-Id: Ie1dcff4c2e5f52521b4172ef5726413a9d048214
Reviewed-on: https://gerrit.libreoffice.org/67961
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

forms/source/component/EventThread.cxx

@@ -74,8 +74,8 @@ void OComponentEventThread::impl_clearEventQueue()
     for ( auto& rEvent : m_aEvents )
         delete rEvent;
     m_aEvents.clear();
-    m_aControls.erase( m_aControls.begin(), m_aControls.end() );
-    m_aFlags.erase( m_aFlags.begin(), m_aFlags.end() );
+    m_aControls.clear();
+    m_aFlags.clear();
 }
 
 void OComponentEventThread::disposing( const EventObject& evt )

helpcompiler/source/HelpCompiler.cxx

@@ -298,7 +298,7 @@ static void trim(std::string& str)
             str.erase(0, pos);
     }
     else
-        str.erase(str.begin(), str.end());
+        str.clear();
 }
 
 void myparser::traverse( xmlNodePtr parentNode )

sd/source/ui/remotecontrol/BufferedStreamSocket.cxx

@@ -119,7 +119,7 @@ sal_Int32 BufferedStreamSocket::readLine( OString& aLine )
         // Prevent buffer from growing massively large.
         if ( aRead > MAX_LINE_LENGTH )
         {
-            aBuffer.erase( aBuffer.begin(), aBuffer.end() );
+            aBuffer.clear();
             return 0;
         }
         aRead += aRet;

sw/source/ui/frmdlg/frmpage.cxx

@@ -2935,10 +2935,10 @@ void SwFrameAddPage::Reset(const SfxItemSet *rSet )
             }
             else
                 m_xPrevLB->set_active(0);
-            aPrevPageFrames.erase(aPrevPageFrames.begin(), aPrevPageFrames.end());
-            aNextPageFrames.erase(aNextPageFrames.begin(), aNextPageFrames.end());
-            aThisPageFrames.erase(aThisPageFrames.begin(), aThisPageFrames.end());
-            aRemainFrames.erase(aRemainFrames.begin(), aRemainFrames.end());
+            aPrevPageFrames.clear();
+            aNextPageFrames.clear();
+            aThisPageFrames.clear();
+            aRemainFrames.clear();
 
             m_pWrtSh->GetConnectableFrameFormats(*pFormat, sPrevChain, true,
                             aPrevPageFrames, aThisPageFrames, aNextPageFrames, aRemainFrames );

unoxml/source/dom/elementlist.cxx

@@ -120,7 +120,7 @@ namespace DOM
             {
                 return;
             } else {
-                m_nodevector.erase(m_nodevector.begin(), m_nodevector.end());
+                m_nodevector.clear();
                 m_bRebuild = false; // don't rebuild until tree is mutated
             }
         }