remove unused deps from package.json (#7068)

package.json

@@ -28,15 +28,12 @@
     "geojson-rewind": "^0.3.0",
     "geojson-vt": "^3.1.4",
     "gl-matrix": "^2.6.1",
-    "gray-matter": "^3.0.8",
     "grid-index": "^1.0.0",
     "minimist": "0.0.8",
     "pbf": "^3.0.5",
     "quickselect": "^1.0.0",
     "rw": "^1.3.3",
-    "shuffle-seed": "^1.1.6",
     "supercluster": "^4.0.1",
-    "through2": "^2.0.3",
     "tinyqueue": "^1.1.0",
     "vt-pbf": "^3.0.1"
   },
@@ -48,7 +45,6 @@
     "babel-eslint": "^7.0.0",
     "benchmark": "~2.1.0",
     "browserify": "^16.1.0",
-    "coveralls": "^2.11.8",
     "d3": "^4.12.0",
     "documentation": "5.3.3",
     "ejs": "^2.5.7",
@@ -69,7 +65,6 @@
     "is-builtin-module": "^1.0.0",
     "jsdom": "^11.6.2",
     "json-stringify-pretty-compact": "^1.0.4",
-    "lodash": "^4.16.0",
     "mock-geolocation": "^1.0.11",
     "npm-run-all": "^4.0.1",
     "nyc": "^10.1.2",

yarn.lock

@@ -2571,7 +2571,7 @@ cosmiconfig@^3.1.0:
     parse-json "^3.0.0"
     require-from-string "^2.0.1"
 
-coveralls@^2.11.8, coveralls@^2.13.3:
+coveralls@^2.13.3:
   version "2.13.3"
   resolved "https://registry.yarnpkg.com/coveralls/-/coveralls-2.13.3.tgz#9ad7c2ae527417f361e8b626483f48ee92dd2bc7"
   dependencies:
@@ -4648,7 +4648,7 @@ graceful-fs@^4.0.0, graceful-fs@^4.1.11, graceful-fs@^4.1.2, graceful-fs@^4.1.6,
   version "4.1.11"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.11.tgz#0e8bdfe4d1ddb8854d64e04ea7c00e2a026e5658"
 
-gray-matter@^3.0.8, gray-matter@^3.1.1:
+gray-matter@^3.1.1:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/gray-matter/-/gray-matter-3.1.1.tgz#101f80d9e69eeca6765cdce437705b18f40876ac"
   dependencies:
@@ -6268,7 +6268,7 @@ lodash@^3.10.1, lodash@^3.3.1:
   version "3.10.1"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-3.10.1.tgz#5bf45e8e49ba4189e17d482789dfd15bd140b7b6"
 
-lodash@^4.0.0, lodash@^4.1.0, lodash@^4.11.1, lodash@^4.13.1, lodash@^4.14.0, lodash@^4.15.0, lodash@^4.16.0, lodash@^4.17.3, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.3.0:
+lodash@^4.0.0, lodash@^4.1.0, lodash@^4.11.1, lodash@^4.13.1, lodash@^4.14.0, lodash@^4.15.0, lodash@^4.17.3, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.3.0:
   version "4.17.5"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.5.tgz#99a92d65c0272debe8c96b6057bc8fbfa3bed511"
 
@@ -9866,7 +9866,7 @@ through2@^0.6.0, through2@^0.6.3:
     readable-stream ">=1.0.33-1 <1.1.0-0"
     xtend ">=4.0.0 <4.1.0-0"
 
-through2@^2.0.0, through2@^2.0.1, through2@^2.0.3, through2@~2.0.0, through2@~2.0.3:
+through2@^2.0.0, through2@^2.0.1, through2@~2.0.0, through2@~2.0.3:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/through2/-/through2-2.0.3.tgz#0004569b37c7c74ba39c43f3ced78d1ad94140be"
   dependencies: