Remove clutter

.dockerignore

@@ -1,5 +0,0 @@
-node_modules
-dist
-target
-package-lock.json
-.*

src/helper/polyfill-imul.ts

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-export const polyfillImul = () => {
-  // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/imul
-  if (!Math.imul)
-    Math.imul = function(opA, opB) {
-      opB |= 0; // ensure that opB is an integer. opA will automatically be coerced.
-      // floating points give us 53 bits of precision to work with plus 1 sign bit
-      // automatically handled for our convenience:
-      // 1. 0x003fffff /*opA & 0x000fffff*/ * 0x7fffffff /*opB*/ = 0x1fffff7fc00001
-      //    0x1fffff7fc00001 < Number.MAX_SAFE_INTEGER /*0x1fffffffffffff*/
-      let result = (opA & 0x003fffff) * opB;
-      // 2. We can remove an integer coercion from the statement above because:
-      //    0x1fffff7fc00001 + 0xffc00000 = 0x1fffffff800001
-      //    0x1fffffff800001 < Number.MAX_SAFE_INTEGER /*0x1fffffffffffff*/
-      if (opA & 0xffc00000 /*!== 0*/) result += ((opA & 0xffc00000) * opB) | 0;
-      return result | 0;
-    };
-};