Revert of linux: Lower static initializer expectations after...

Revert of linux: Lower static initializer expectations after https://codereview.chromium.org/1549913002 (patchset #3 id:40001 of https://codereview.chromium.org/1545273002/ )

Reason for revert:
Prerequisite for reverting https://codereview.chromium.org/1549913002

Original issue's description:
> linux: Lower static initializer expectations after https://codereview.chromium.org/1549913002
>
> BUG=94925
> TBR=thestig@chromium.org
>
> Committed: https://crrev.com/9bf22f89802e62ca16c8e7f2a3b34689ba71add0
> Cr-Commit-Position: refs/heads/master@{#366908}

TBR=thestig@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=94925

Review URL: https://codereview.chromium.org/1548423002

Cr-Commit-Position: refs/heads/master@{#367066}

tools/perf_expectations/perf_expectations.json

-{"linux-release-64/sizes/chrome-si/initializers": {"reva": 366904, "revb": 366904, "type": "absolute", "better": "lower", "improve": 6, "regress": 6, "tolerance": 0, "sha1": "2f874e39"},
+{"linux-release-64/sizes/chrome-si/initializers": {"reva": 364170, "revb": 364170, "type": "absolute", "better": "lower", "improve": 7, "regress": 7, "tolerance": 0, "sha1": "de779422"},
  "linux-release-64/sizes/nacl_helper-si/initializers": {"reva": 271321, "revb": 271321, "type": "absolute", "better": "lower", "improve": 5, "regress": 7, "sha1": "f29296a1"},
  "linux-release-64/sizes/nacl_helper_bootstrap-si/initializers": {"reva": 114822, "revb": 115019, "type": "absolute", "better": "lower", "improve": 0, "regress": 0, "sha1": "228221af"},
- "linux-release/sizes/chrome-si/initializers": {"reva": 366904, "revb": 366904, "type": "absolute", "better": "lower", "improve": 7, "regress": 7, "tolerance": 0, "sha1": "d4215bbc"},
+ "linux-release/sizes/chrome-si/initializers": {"reva": 281717, "revb": 281717, "type": "absolute", "better": "lower", "improve": 8, "regress": 8, "tolerance": 0, "sha1": "b639bbc4"},
  "linux-release/sizes/nacl_helper-si/initializers": {"reva": 271321, "revb": 271321, "type": "absolute", "better": "lower", "improve": 6, "regress": 8, "sha1": "3394be7f"},
  "linux-release/sizes/nacl_helper_bootstrap-si/initializers": {"reva": 114822, "revb": 115019, "type": "absolute", "better": "lower", "improve": 0, "regress": 0, "sha1": "dd908f29"},
  "mac-release/sizes/chrome-si/initializers": {"reva": 281731, "revb": 281731, "type": "absolute", "better": "lower", "improve": 0, "regress": 0, "tolerance": 0, "sha1": "01759b7f"},