Fix grid resizing issues.

Normally we don't want to resize when a control is open (such as a
drop-down), but it appears safe enough when all the controls are
just text-button controls.

Fixes https://gitlab.com/kicad/code/kicad/issues/6090

common/dialogs/dialog_configure_paths.cpp

@@ -517,8 +517,7 @@ void DIALOG_CONFIGURE_PATHS::OnGridCellChange( wxGridEvent& aEvent )
 
 void DIALOG_CONFIGURE_PATHS::OnUpdateUI( wxUpdateUIEvent& event )
 {
-    if( m_gridWidthsDirty && ( !m_EnvVars->IsCellEditControlShown()
-                               && !m_SearchPaths->IsCellEditControlShown() ) )
+    if( m_gridWidthsDirty )
     {
         int width = m_EnvVars->GetClientRect().GetWidth();
 

common/dialogs/panel_text_variables.cpp

@@ -188,7 +188,7 @@ void PANEL_TEXT_VARIABLES::OnGridCellChange( wxGridEvent& aEvent )
 
 void PANEL_TEXT_VARIABLES::OnUpdateUI( wxUpdateUIEvent& event )
 {
-    if( m_gridWidthsDirty && ( !m_TextVars->IsCellEditControlShown() ) )
+    if( m_gridWidthsDirty )
     {
         int width = m_TextVars->GetClientRect().GetWidth();