refactor: remove imports that are no longer needed

Author: evansiroky

Diff for: lib/index.css

@@ -4,7 +4,6 @@
 @import url(node_modules/font-awesome/css/font-awesome.css);
 @import url(node_modules/react-dates/lib/css/_datepicker.css);
 @import url(node_modules/transitive-js/lib/transitive.css);
-@import url(node_modules/leaflet.polylinemeasure/Leaflet.PolylineMeasure.css);
 
 @import url(lib/components/app/app.css);
 @import url(lib/components/map/map.css);

Diff for: yarn.lock

@@ -1070,7 +1070,7 @@
     "@conveyal/lonlat" "^1.3.0"
     geocoder-arcgis "^2.0.4"
 
-"@conveyal/lonlat@^1.1.0", "@conveyal/lonlat@^1.1.2", "@conveyal/lonlat@^1.3.0", "@conveyal/lonlat@^1.4.0":
+"@conveyal/lonlat@^1.1.2", "@conveyal/lonlat@^1.3.0", "@conveyal/lonlat@^1.4.0":
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/@conveyal/lonlat/-/lonlat-1.4.0.tgz#18a5c1349078a779e710d24af11bc02b24127ba0"
   integrity sha512-ag1FcRuwRGAZgeZ4e3sUq+gblf1Pgma2c9SaIVXluIrgsZ9Lrq7xhCbV0ErN8chyg/OCOoG8m/l3mgzbycQCnQ==
@@ -1248,11 +1248,6 @@
     "@types/istanbul-reports" "^1.1.1"
     "@types/yargs" "^12.0.9"
 
-"@mapbox/polyline@^0.2.0":
-  version "0.2.0"
-  resolved "https://registry.yarnpkg.com/@mapbox/polyline/-/polyline-0.2.0.tgz#6e25980744aa22331f94b645a542c02d3fcfee97"
-  integrity sha1-biWYB0SqIjMflLZFpULALT/P7pc=
-
 "@mapbox/polyline@^1.1.0":
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/@mapbox/polyline/-/polyline-1.1.0.tgz#7bdd1da3a25c1d059af3897e0ee581b7c7b80243"
@@ -5385,7 +5380,7 @@ deep-eql@^3.0.1:
   dependencies:
     type-detect "^4.0.0"
 
-deep-equal@^1.0.0, deep-equal@^1.0.1:
+deep-equal@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/deep-equal/-/deep-equal-1.0.1.tgz#f5d260292b660e084eff4cdbc9f08ad3247448b5"
   integrity sha1-9dJgKStmDghO/0zbyfCK0yR0SLU=
@@ -9148,10 +9143,6 @@ lead@^1.0.0:
   dependencies:
     flush-write-stream "^1.0.2"
 
-"leaflet.polylinemeasure@github:ppete2/Leaflet.PolylineMeasure":
-  version "1.0.0"
-  resolved "https://codeload.github.com/ppete2/Leaflet.PolylineMeasure/tar.gz/8fed0cbe7c17dae4e1ce0852fa243d8467325a77"
-
 leaflet@^1.6.0:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/leaflet/-/leaflet-1.6.0.tgz#aecbb044b949ec29469eeb31c77a88e2f448f308"
@@ -13045,14 +13036,6 @@ rc@^1.0.1, rc@^1.1.6, rc@^1.2.7, rc@^1.2.8:
     minimist "^1.2.0"
     strip-json-comments "~2.0.1"
 
-react-addons-shallow-compare@^15.4.2:
-  version "15.6.2"
-  resolved "https://registry.yarnpkg.com/react-addons-shallow-compare/-/react-addons-shallow-compare-15.6.2.tgz#198a00b91fc37623db64a28fd17b596ba362702f"
-  integrity sha1-GYoAuR/DdiPbZKKP0XtZa6NicC8=
-  dependencies:
-    fbjs "^0.8.4"
-    object-assign "^4.1.0"
-
 react-bootstrap@^0.32.1:
   version "0.32.4"
   resolved "https://registry.yarnpkg.com/react-bootstrap/-/react-bootstrap-0.32.4.tgz#8efc4cbfc4807215d75b7639bee0d324c8d740d1"
@@ -15481,7 +15464,7 @@ tr46@^1.0.1:
   dependencies:
     punycode "^2.1.0"
 
-transitive-js@^0.13.2:
+transitive-js@^0.13.0, transitive-js@^0.13.2:
   version "0.13.2"
   resolved "https://registry.yarnpkg.com/transitive-js/-/transitive-js-0.13.2.tgz#ca8adde4ccf5c1fb02623df287ac3c91499c566a"
   integrity sha512-2r6uoA7pCOyMeecTOWgT+MJMa+gVmLlBR2+s1YKYxBYmusS5Lx24ICqc3RVA2+yE36k9fe+ReMBOcBCoK2mY6w==