Revert "[devtools] Temporarily disable tests related to crbug.com/1003497."

This reverts commit 5551563f.

Reason for revert: Not needed anymore.

Original change's description:
> [devtools] Temporarily disable tests related to crbug.com/1003497.
> 
> These will be rebaselined manually once the fix rolls into
> devtools-frontend repository.
> 
> Bug: chromium:1003497
> Change-Id: I98b2178dd67be86188e4c212e509330d29f04c94
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1872098
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#708133}

TBR=yangguo@chromium.org,bmeurer@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: chromium:1003497
Change-Id: I49a2907301b59b747c1cc2b497c040b9306c4e5e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1878247Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#708968}

third_party/blink/web_tests/TestExpectations

@@ -2251,13 +2251,6 @@ crbug.com/796619 [ Win10 ] external/wpt/css/css-fonts/matching/style-ranges-over
 # These need a rebaseline due crbug.com/504745 on Windows when they are activated again.
 crbug.com/521124 crbug.com/410145 [ Win7 ] fast/css/font-weight-1.html [ Pass Failure ]
 
-# These need a rebaseline due crbug.com/1003497 when the relevant change lands in devtools-frontend.
-crbug.com/1003497 http/tests/devtools/sources/inline-styles-scripts-locations.js [ Pass Failure ]
-crbug.com/1003497 http/tests/devtools/startup/sources/debugger/linkifier.js [ Pass Failure ]
-crbug.com/1003497 http/tests/devtools/startup/sources/debugger/script-formatter-breakpoints-1.js [ Pass Failure ]
-crbug.com/1003497 http/tests/devtools/startup/sources/debugger/script-formatter-breakpoints-4.js [ Pass Failure ]
-crbug.com/1003497 http/tests/devtools/startup/sources/debugger/script-formatter-console.js [ Pass Failure ]
-
 # Disabled briefly until test runner support lands.
 crbug.com/479533 accessibility/show-context-menu.html [ Skip ]
 crbug.com/479533 accessibility/show-context-menu-shadowdom.html [ Skip ]