Clean codebase

Author: jahn96

package.json

@@ -49,15 +49,9 @@
  "@jupyterlab/nbformat": "^2.1.0",
  "@jupyterlab/notebook": "^2.1.2",
  "@jupyterlab/rendermime": "^2.1.1",
-<<<<<<< HEAD
  "@jupyterlab/services": "^5.0.0",
  "@lumino/algorithm": "^1.3.2",
  "@lumino/dragdrop": "^1.6.2",
-=======
- "@lumino/algorithm": "^1.3.2",
- "@lumino/dragdrop": "^1.6.2",
- "@jupyterlab/services": "^5.0.0",
->>>>>>> Add linting code in package.json
  "@lumino/messaging": "^1.4.2",
  "@lumino/properties": "^1.2.2",
  "@lumino/signaling": "^1.4.2",

src/CodeSnippetWidget.tsx

@@ -27,7 +27,7 @@ import {
  Dialog,
  showDialog
  } from '@jupyterlab/apputils';
-import { Cell, CodeCell, MarkdownCell } from '@jupyterlab/cells';
+import { CodeCell, MarkdownCell } from '@jupyterlab/cells';
 import { CodeEditor } from '@jupyterlab/codeeditor';
 import { PathExt } from '@jupyterlab/coreutils';
 import { IDocumentManager } from '@jupyterlab/docmanager';
@@ -39,7 +39,6 @@ import { copyIcon, addIcon, closeIcon } from '@jupyterlab/ui-components';
 import { Message } from '@lumino/messaging';
 import { Signal } from '@lumino/signaling';
 import { Widget, PanelLayout } from '@lumino/widgets';
-import { AttachedProperty } from '@lumino/properties';
 
 import { IDragEvent } from '@lumino/dragdrop';
 import { MimeData } from '@lumino/coreutils';
@@ -65,11 +64,6 @@ const CODE_SNIPPET_ITEM = 'elyra-codeSnippet-item';
  */
 const DROP_TARGET_CLASS = 'jp-mod-dropTarget';
 
-/**
- * The class name added to notebook widget cells.
- */
-// const NB_CELL_CLASS = 'jp-Notebook-cell';
-
 /**
  * CodeSnippetDisplay props.
  */
@@ -455,7 +449,6 @@ export class CodeSnippetWidget extends ReactWidget {
  }
 
  render(): React.ReactElement {
- console.log('widget rendering');
  return (
  <div className={CODE_SNIPPETS_CLASS}>
  <header className={CODE_SNIPPETS_HEADER_CLASS}>
@@ -488,11 +481,6 @@ namespace Private {
  const data = mime.getData('text/plain');
  return data;
  }
-
- export const selectedProperty = new AttachedProperty<Cell, boolean>({
- name: 'selected',
- create: () => false
- });
 
  /**
  * A custom panel layout for the notebook.