Revert "Lower highest gczeal value generated into --gc-zeal due to bug 1516138."
Revert "Lower highest gczeal value generated into --gc-zeal due to bug 1516138."

This reverts commit 359fab090e68d0523510cce216704fa507dd23e4.

MozillaSecurity/funfuzz,MozillaSecurity/funfuzz,MozillaSecurity/funfuzz,nth10sd/funfuzz,nth10sd/funfuzz,nth10sd/funfuzz