TestNotEqualsStrict is converted to a TestEqualsStrict and logical not
by the parser. Also, CompareIC does not have an implementation for
TestNotEqualsStrict. Hence, removing this bytecode.

BUG=v8:4280
LOG=N

Review URL: https://codereview.chromium.org/1768593002

Cr-Commit-Position: refs/heads/master@{#34527}