Remove tinycolor2 library

Author: camdecoster

package-lock.json

@@ -113,7 +113,6 @@
     "strongly-connected-components": "^1.0.1",
     "superscript-text": "^1.0.0",
     "svg-path-sdf": "^1.1.3",
-    "tinycolor2": "^1.4.2",
     "to-px": "1.0.1",
     "topojson-client": "^3.1.0",
     "webgl-context": "^2.2.0",