Do not define hotkeys for copy/cut/paste to avoid double action execution

CTRL+{X,C,V} used to be handled both by the legacy hotkey system that
generated ID_EDIT_{CUT,COPY,PASTE} wxCommandEvent, and the Tool Framework
hotkey system.

Fixes: lp:1749549
* https://bugs.launchpad.net/kicad/+bug/1749549

pcbnew/tools/edit_tool.cpp

@@ -171,12 +171,12 @@ TOOL_ACTION PCB_ACTIONS::measureTool( "pcbnew.InteractiveEdit.measureTool",
         nullptr, AF_ACTIVATE );
 
 TOOL_ACTION PCB_ACTIONS::copyToClipboard( "pcbnew.InteractiveEdit.CopyToClipboard",
-        AS_GLOBAL, TOOL_ACTION::LegacyHotKey( HK_EDIT_COPY ),
+        AS_GLOBAL, 0,   // do not define a hotkey and let TranslateLegacyId() handle the event
         _( "Copy" ), _( "Copy selected content to clipboard" ),
         copy_xpm );
 
 TOOL_ACTION PCB_ACTIONS::cutToClipboard( "pcbnew.InteractiveEdit.CutToClipboard",
-        AS_GLOBAL, TOOL_ACTION::LegacyHotKey( HK_EDIT_CUT ),
+        AS_GLOBAL, 0,   // do not define a hotkey and let TranslateLegacyId() handle the event
         _( "Cut" ), _( "Cut selected content to clipboard" ),
         cut_xpm );
 

pcbnew/tools/pcbnew_control.cpp

@@ -239,7 +239,7 @@ TOOL_ACTION PCB_ACTIONS::toBeDone( "pcbnew.Control.toBeDone",
         "", "" );               // so users are aware of that
 
 TOOL_ACTION PCB_ACTIONS::pasteFromClipboard( "pcbnew.InteractiveEdit.pasteFromClipboard",
-        AS_GLOBAL, MD_CTRL + int( 'V' ),
+        AS_GLOBAL, 0,   // do not define a hotkey and let TranslateLegacyId() handle the event
         _( "Paste" ), _( "Paste content from clipboard" ),
         paste_xpm );