Revert "gpu: Mark maps pixel test as flaky on Win10 NVIDIA"

This reverts commit 315a40c5.

Reason for revert: should have been RetryOnFailure on "win nvidia debug" only - will cause regressions to be missed.

Original change's description:
> gpu: Mark maps pixel test as flaky on Win10 NVIDIA
> 
> TBR=zmo@chromium.org
> 
> Bug: 1053892
> Change-Id: Id0fd2c696d1982101b849490bc899e3393dd84dd
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2063014
> Reviewed-by: Sergey Poromov <poromov@chromium.org>
> Commit-Queue: Sergey Poromov <poromov@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#742580}

TBR=zmo@chromium.org,poromov@chromium.org

Change-Id: I05726206aeaa64a6eb6bf66be679bb2d851693f9
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 1053892
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2062577Reviewed-by: Kenneth Russell <kbr@chromium.org>
Commit-Queue: Kenneth Russell <kbr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#742741}

content/test/gpu/gpu_tests/test_expectations/maps_expectations.txt

-# tags: [ android win10 ]
+# tags: [ android ]
 # tags: [ android-nexus-5x android-nexus-5 ]
 # tags: [ skia-renderer no-skia-renderer ]
-# tags: [ nvidia ]
 # results: [ Failure RetryOnFailure Skip ]
 
 crbug.com/1006045 [ android android-nexus-5x skia-renderer ] Maps_maps [ Failure ]
 crbug.com/1009137 [ android android-nexus-5 no-skia-renderer ] Maps_maps [ RetryOnFailure ]
-crbug.com/1053892 [ win10 nvidia ] Maps_maps [ Failure ]