Backout Dynamic Trip Count Prediction for SpiderMonkey Revisions.

[!] Casued build to fail without some patches, ran some benchmarks and decided the code is to raw to implement.
[!] Revert: c82f4bd9c9e13c0db8a8bdce6a2355eabc277e68
[!] Revert: 1b62b25d1de872a492c8bd19b74626736127c1eb