Revert "Android: Add Error Prone warning against Java stream() apis"

This reverts commit e910d272c026bf1463f54ea17ce6fb16f55513cf.

Reason for revert: crbug.com/344943957#comment13

Original change's description:
> Android: Add Error Prone warning against Java stream() apis
>
> And minor clarifying tweaks to style guide wrt streams
>
> Bug: 344943957
> Change-Id: I90b976866c8f3f71826459b7d3097692e1f533b4
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6042674
> Auto-Submit: Andrew Grieve <agrieve@chromium.org>
> Commit-Queue: Andrew Grieve <agrieve@chromium.org>
> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#1388426}

Bug: 344943957
Change-Id: Ib9b3d8db9f47383eaced5192a15e7cac6427da35
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6051419
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Auto-Submit: Keigo Oka <oka@chromium.org>
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Reviewed-by: Andrew Grieve <agrieve@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1388467}