diff --git a/cli/unstable_progress_bar.ts b/cli/unstable_progress_bar.ts
index 3201d277f1b5..e45fa096eaba 100644
--- a/cli/unstable_progress_bar.ts
+++ b/cli/unstable_progress_bar.ts
@@ -24,18 +24,10 @@ export interface ProgressBarFormatter {
    * The duration of the progress bar.
    */
   time: number;
-  /**
-   * The duration passed to the last call.
-   */
-  previousTime: number;
   /**
    * The current value the progress bar is sitting at.
    */
   value: number;
-  /**
-   * The value passed to the last call.
-   */
-  previousValue: number;
   /**
    * The max value expected to receive.
    */
@@ -202,8 +194,6 @@ export class ProgressBar {
   #writer: WritableStreamDefaultWriter;
   #id: number;
   #startTime: number;
-  #lastTime: number;
-  #lastValue: number;
   #barLength: number;
   #fillChar: string;
   #emptyChar: string;
@@ -250,8 +240,6 @@ export class ProgressBar {
       .catch(() => clearInterval(this.#id));
     this.#writer = stream.writable.getWriter();
     this.#startTime = performance.now();
-    this.#lastTime = this.#startTime;
-    this.#lastValue = this.value;
 
     this.#id = setInterval(() => this.#print(), 1000);
     this.#print();
@@ -277,13 +265,9 @@ export class ProgressBar {
       },
       progressBar: `${fillChars}${emptyChars}`,
       time: currentTime - this.#startTime,
-      previousTime: this.#lastTime - this.#startTime,
       value: this.value,
-      previousValue: this.#lastValue,
       max: this.max,
     };
-    this.#lastTime = currentTime;
-    this.#lastValue = this.value;
     await this.#writer.write("\r\u001b[K" + this.#fmt(formatter))
       .catch(() => {});
   }
diff --git a/cli/unstable_progress_bar_test.ts b/cli/unstable_progress_bar_test.ts
index ffaf22b877c9..0977a77233c5 100644
--- a/cli/unstable_progress_bar_test.ts
+++ b/cli/unstable_progress_bar_test.ts
@@ -64,29 +64,6 @@ Deno.test("ProgressBar() can remove itself when finished", async () => {
   assertEquals(actual, expected);
 });
 
-Deno.test("ProgressBar() passes correct values to formatter", async () => {
-  const { readable, writable } = new TransformStream();
-  let lastTime: undefined | number = undefined;
-  let lastValue: undefined | number = undefined;
-  const bar = new ProgressBar({
-    writable,
-    max: 10 * 1000,
-    keepOpen: false,
-    fmt(x) {
-      if (lastTime != undefined) assertEquals(x.previousTime, lastTime);
-      if (lastValue != undefined) assertEquals(x.previousValue, lastValue);
-      lastTime = x.time;
-      lastValue = x.value;
-      return "";
-    },
-  });
-
-  for await (const a of getData(10, 1000)) bar.value += a.length;
-  bar.stop();
-
-  await new Response(readable).bytes();
-});
-
 Deno.test("ProgressBar() uses correct unit type", async () => {
   const units = ["KiB", "MiB", "GiB", "TiB", "PiB"];
   let i = 0;