Hide "Power component value text cannot be modified" in libedit (which should ...

Hide "Power component value text cannot be modified" in libedit (which should  be displayed only in schematic editor for power parts)

eeschema/dialogs/dialog_lib_edit_text.cpp

@@ -134,6 +134,10 @@ void DIALOG_LIB_EDIT_TEXT::initDlg( )
 
     // Hide the select button as the child dialog classes use this
     m_TextValueSelectButton->Hide();
+
+    // Hide the "Power component value text cannot be modified!" warning
+    m_PowerComponentValues->Show( false );
+    Fit();
 }