Removed ruby_version_is from Rational shared specs.
Removed ruby_version_is from shared Process specs.
Removed ruby_version_is from shared Math specs.
Removed ruby_version_is from shared File specs.
Removed ruby_version_is from shared Enumerator specs.
Removed ruby_version_is from shared Complex specs.
Removed ruby_version is from C-API specs.
Removed obsolete Rational#initialize spec.
Removed ruby_version_is from language specs.
Fixed language specs for 2.1.1 behavior.