Migrate Remaining Blob Features to V12

[MRayermannMSFT]

JobHandlers

• [x] #5248
• [ ] Open (this code path only exists behind a hidden feature flag, we could just delete this?)
• [ ] Upload (this code path only exists behind a hidden feature flag, we could just delete this?)
• [ ] Download (this code path only exists for the hidden JS feature flag, we could just delete this?)
• [ ] Delete (this code path only exists for the hidden JS feature flag, we could just delete this?)
• [ ] Rename/clone (this code path only exists for the hidden JS feature flag, we could just delete this?)
• [x] #5027
• [x] #5028

Flob Operations

• [ ] Copy (this code path only exists for Azure Stack and the hidden JS feature flag, we should get AzCopy copy to work with Azure Stack, and we could just delete this?)
• [ ] Rename/clone (this code path only exists for emulator clone, we need Azurite to support put block from URL, or we could remove this capability for emulators)

Other

• [x] #5057
• [x] #5023
• [x] #5019
• [x] #5167

[MRayermannMSFT]

I don't see more progress on this being made in 1.22. Going to just move to 1.23 for now.

[MRayermannMSFT]

Will close this out after we:

1. Get a flag from AzCopy to use server side copy
2. We use the flag
3. We delete remaining V2 code paths

[MRayermannMSFT]

No flag going to be given. Simply removing old code paths.