Support synchronous move in symbol editor.

Also removes duplicate-during-move.  It's not really compatibile with
a passed-in SCH_COMMIT, and it was never clear it was worth the code.

Fixes https://gitlab.com/kicad/code/kicad/-/issues/14274

eeschema/sch_commit.cpp

@@ -407,6 +407,7 @@ void SCH_COMMIT::revertLibEdit()
     // Symbol editor just saves copies of the whole symbol, so grab the first and discard the rest
     SYMBOL_EDIT_FRAME* frame = dynamic_cast<SYMBOL_EDIT_FRAME*>( m_toolMgr->GetToolHolder() );
     LIB_SYMBOL*        copy = dynamic_cast<LIB_SYMBOL*>( m_changes.front().m_copy );
+    EE_SELECTION_TOOL* selTool = m_toolMgr->GetTool<EE_SELECTION_TOOL>();
 
     if( frame && copy )
     {
@@ -417,6 +418,9 @@ void SCH_COMMIT::revertLibEdit()
     for( size_t ii = 1; ii < m_changes.size(); ++ii )
         delete m_changes[ii].m_copy;
 
+    if( selTool )
+        selTool->RebuildSelection();
+
     clear();
 }