remove papaparse dependency

package.json

@@ -157,7 +157,6 @@
     "moment": "^2.18.1",
     "mousetrap": "^1.6.0",
     "mousetrap-global-bind": "^1.1.0",
-    "papaparse": "^4.4.0",
     "prismjs": "^1.6.0",
     "prop-types": "^15.6.0",
     "react": "^16.2.0",

yarn.lock

@@ -7928,10 +7928,6 @@ pako@~1.0.5:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/pako/-/pako-1.0.6.tgz#0101211baa70c4bca4a0f63f2206e97b7dfaf258"
 
-papaparse@^4.4.0:
-  version "4.4.0"
-  resolved "https://registry.yarnpkg.com/papaparse/-/papaparse-4.4.0.tgz#6bcdbda80873e00cfb0bdcd7a4571c72a9a40168"
-
 parallel-transform@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/parallel-transform/-/parallel-transform-1.1.0.tgz#d410f065b05da23081fcd10f28854c29bda33b06"