Revert "Probe OfflineCanvas speed"

This reverts commit 8e88a5b.

polyfills.js

@@ -23,19 +23,6 @@ const newRegExp = (...args) => {
 };
 global.RegExp = newRegExp;
 
-// Optional polyfill for console.time
-const timers = new Map();
-console.time ??= ((label) => {
-  timers.set(label, Date.now());
-});
-console.timeEnd ??= ((label) => {
-  const start = timers.get(label);
-  if (start) {
-    console.log(`${label}: ${Date.now() - start}ms`);
-    timers.delete(label);
-  }
-});
-
 // OffscreenCanvas, Image, etc.
 global.Image = class ImagePolyfill extends EventEmitter {
   constructor(width, height) {
@@ -168,7 +155,6 @@ global.CanvasRenderingContext2D = class CanvasRenderingContext2DPolyfill {
   }
 
   putImageData(imageData, dx, dy, dirtyX, dirtyY, dirtyWidth, dirtyHeight) {
-    console.time('putImageData');
     const { data, width, height } = imageData;
     const skData = Skia.Data.fromBytes(data);
     const image = Skia.Image.MakeImage(getImageInfo(width, height), skData, 4 * width);
@@ -194,20 +180,16 @@ global.CanvasRenderingContext2D = class CanvasRenderingContext2DPolyfill {
       );
     }
     image.dispose();
-    console.timeEnd('putImageData');
   }
 
   getImageData(sx=0, sy=0, sw, sh) {
-    console.time('getImageData');
     const width = sw ?? this.canvas.width;
     const height = sh ?? this.canvas.height;
     const pixels = this._ctx.readPixels(sx, sy, getImageInfo(width, height), undefined, 4 * width);
-    console.timeEnd('getImageData');
     return new ImageData(pixels, width, height);
   }
 
   drawImage(image, dx, dy, dw, dh, sx, sy, sw, sh) {
-    console.time('drawImage');
     let img;
     let width;
     let height;
@@ -262,7 +244,6 @@ global.CanvasRenderingContext2D = class CanvasRenderingContext2DPolyfill {
     if (image.surface) {
       img.dispose();
     }
-    console.timeEnd('drawImage');
   }
 
   fillText(text, x, y, maxWidth) {