Enable failing v8.runtime_stats.top_25/https://www.google.de/search?q=v8 on Linux

Bug: chromium:829504
Change-Id: I9360d8e3d7fd50289a0b59771447ec9bdc16a2ad
Reviewed-on: https://chromium-review.googlesource.com/1013489
Commit-Queue: Ned Nguyen <nednguyen@google.com>
Reviewed-by: Ned Nguyen <nednguyen@google.com>
Cr-Commit-Position: refs/heads/master@{#561671}

tools/perf/expectations.config

@@ -430,8 +430,6 @@ crbug.com/812618 [ Android_Webview ] v8.detached_context_age_in_gc/Docs_(1_open_
 # Benchmark: v8.runtime_stats.top_25
 crbug.com/664318 [ Android ] v8.runtime_stats.top_25/* [ Skip ]
 crbug.com/664318 [ Win ] v8.runtime_stats.top_25/* [ Skip ]
-crbug.com/829504 [ Linux ] v8.runtime_stats.top_25/https://www.google.de/search?q=v8 [ Skip ]
-crbug.com/829161 [ Mac ] v8.runtime_stats.top_25/https://www.google.de/search?q=v8 [ Skip ]
 
 # Benchmark: wasm
 [ Android_One ] wasm/WasmSpaceBuggy [ Skip ]