Bug 1047603 - [e10s] Follow-up to disable test for Linux until OMTC is enabled by default. rs=dholbert on a CLOSED TREE.

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extra : rebase_source : 6ff1875d4df4c6451e1aa4fd1205e32cc5e2a64c
extra : histedit_source : a7b120d39b38b936325908b28ac1ea4ea68a15ae