Removed other dependencies

package.json

@@ -57,8 +57,6 @@
   "dependencies": {
     "@journeyapps/sqlcipher": "https://github.com/scottnonnenberg-signal/node-sqlcipher.git#b10f232fac62ba7f8775c9e086bb5558fe7d948b",
     "@sindresorhus/is": "0.8.0",
-    "@types/dompurify": "^2.0.0",
-    "@types/rc-slider": "^8.6.5",
     "backbone": "1.3.3",
     "blob-util": "1.3.0",
     "blueimp-canvas-to-blob": "3.14.0",
@@ -111,7 +109,6 @@
     "rimraf": "2.6.2",
     "semver": "5.4.1",
     "tar": "4.4.8",
-    "testcheck": "1.0.0-rc.2",
     "tmp": "0.0.33",
     "to-arraybuffer": "1.0.1",
     "underscore": "1.9.0",
@@ -122,6 +119,7 @@
     "@types/classnames": "2.2.3",
     "@types/color": "^3.0.0",
     "@types/config": "0.0.34",
+    "@types/dompurify": "^2.0.0",
     "@types/electron-is-dev": "^1.1.1",
     "@types/filesize": "3.6.0",
     "@types/fs-extra": "5.0.5",
@@ -132,6 +130,7 @@
     "@types/mocha": "5.0.0",
     "@types/pify": "3.0.2",
     "@types/qs": "6.5.1",
+    "@types/rc-slider": "^8.6.5",
     "@types/react": "16.8.5",
     "@types/react-dom": "16.8.2",
     "@types/react-portal": "^4.0.2",

ts/util/lint/linter.ts

@@ -160,7 +160,6 @@ const excludedFiles = [
   '^node_modules/spectron/*',
   '^node_modules/style-loader/*',
   '^node_modules/svgo/*',
-  '^node_modules/testcheck/*',
   '^node_modules/text-encoding/*',
   '^node_modules/tinycolor2/*',
   '^node_modules/to-ast/*',

yarn.lock

@@ -9841,7 +9841,7 @@ test-exclude@^4.1.1:
     read-pkg-up "^1.0.1"
     require-main-filename "^1.0.1"
 
-testcheck@1.0.0-rc.2, testcheck@^1.0.0-rc:
+testcheck@^1.0.0-rc:
   version "1.0.0-rc.2"
   resolved "https://registry.yarnpkg.com/testcheck/-/testcheck-1.0.0-rc.2.tgz#11356a25b84575efe0b0857451e85b5fa74ee4e4"
   integrity sha1-ETVqJbhFde/gsIV0UehbX6dO5OQ=