Revert "Fix telemetry.internal.browser.tab_unittest.TabTest.testTabIsAlive is flaky"
Revert "Fix telemetry.internal.browser.tab_unittest.TabTest.testTabIsAlive is flaky"

This reverts commit aa7e5aa9e9ff6640887ec1d6a90dd876c33326a9.

Reason for revert: The CL seems incorrect and it broke the auto-roller.

Original change's description:
> Fix telemetry.internal.browser.tab_unittest.TabTest.testTabIsAlive is flaky
>
> This CL replace tab.navigate call by adding the url parameter. It's
> a potential fix for the flaky tab unittest.
>
> Bug: chromium:1246005
> Change-Id: I8c9311cb4e3988c8f96d93e512d5cead5374cdc6
> Reviewed-on: https://chromium-review.googlesource.com/c/catapult/+/3319212
> Reviewed-by: Ryan Heise <heiserya@google.com>
> Commit-Queue: Yuheng Huang <1a14baf591cdc75e4cdda74a9c65c529d9a49175@chromium.org>

Bug: chromium:1246005
Change-Id: Ib26cc30de9ce7ab577c4b4034d26b061b756227c
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/catapult/+/3319307
Bot-Commit: Rubber Stamper <d516c4cc2192058ab8dae3d306acbdaf2ce6574f@appspot.gserviceaccount.com>
Reviewed-by: Yuheng Huang <1a14baf591cdc75e4cdda74a9c65c529d9a49175@chromium.org>
Reviewed-by: Wenbin Zhang <45ad8a1ff616a38a2202fd35571df81897c5f14f@google.com>
Commit-Queue: John Chen <334fbfbb4df7c78f091ea1b77c69ca6ac731a3f3@chromium.org>

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