igc: Reinstate IGC_REMOVED logic and implement it properly
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.58 by commit e75b73081f1ec169518773626c2ff3950476660b, it was introduced in version v4.20 by commit 146740f9abc4976e4f0af1aa302efee1c699d2e4. For more details please see the references link.