No longer clear the variables editor when it's hidden (#83)

Author: jimkyndemeyer

src/main/com/intellij/lang/jsgraphql/v1/ide/actions/JSGraphQLToggleVariablesAction.java

@@ -71,9 +71,6 @@ public void setSelected(AnActionEvent e, boolean state) {
             if (state) {
                 variablesEditor.getContentComponent().grabFocus();
             } else {
-                ApplicationManager.getApplication().runWriteAction(() -> {
-                    variablesEditor.getDocument().setText("");
-                });
                 queryEditor.getContentComponent().grabFocus();
             }