chore: remove ts-morph dependency (#121)

Author: valerybugakov

.changeset/thirty-terms-shake.md

@@ -0,0 +1,5 @@
+---
+'@sourcegraph/eslint-plugin-sourcegraph': patch
+---
+
+Removed `ts-morph` dependency

packages/eslint-plugin/src/rules/use-button-component/use-button-component.ts

@@ -3,7 +3,8 @@ import { ts, StringLiteral, JsxOpeningElement } from 'ts-morph'
 
 import { ButtonElementToComponent } from '@sourcegraph/codemod-transforms'
 
-import { createRule, getNodeWrapper } from '../../utils'
+import { createRule } from '../../utils'
+import { getNodeWrapper } from '../../utils/getWrappedNode'
 
 export const messages = {
     bannedClassnameMessage: 'Use the Wildcard component `<Button />` instead of the `{{name}}` class.',

packages/eslint-plugin/src/utils/index.ts

@@ -2,7 +2,6 @@ import { ESLintUtils } from '@typescript-eslint/experimental-utils'
 
 export * from './createRule'
 export * from './types'
-export * from './getWrappedNode'
 
 // this is done for convenience - saves migrating all of the old rules
 const { applyDefault, deepMerge, isObjectNotArray, getParserServices } = ESLintUtils