GitLab

Valgrind: Remove another set of obsolete suppressions.

BUG=42958,47950,49279,51379,51590,51679,52837,52957,54308,55533,56359,56676,58321,58340,58546,60556,60654,80462,80550,80551,84224,112278,112450,112594,118890
NOTRY=true
TBR=ericwilligers@chromium.org

Review URL: https://codereview.chromium.org/605553002

Cr-Commit-Position: refs/heads/master@{#296587}