Remove deprecated method, DependencyDetection#deprecated_disabled_configured?

[kaylareopelle]

File: lib/new_relic/agent/dependency_detection.rb

• Remove deprecated method DependencyDetection#deprecated_disabled_configured?
• Replace all references to DependencyDetection#deprecated_disabled_configured? with DependencyDetection#disabled_configured?

[angelatan2]

Size = S to M.

[kaylareopelle]

Completing this in 9.0

[workato-integration]

https://issues.newrelic.com/browse/NEWRELIC-3334

[tannalynn]

We're removing this from the 9.0 release.
Since this method is internal to the agent and not a public api or customer facing, this isn't a breaking change so we can remove it anytime.