Fix docker image builds with an actually-reliable dependency skip

[Groxx]

Honestly this is so obvious in retrospect that I don't know why I tried to do the fake-codegen thing.
The easiest way to skip dependencies is... to not declare that dependency in the first place.

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Our github actions to release a new docker image are failing with errors like

Step 14/58 : RUN CGO_ENABLED=0 make copyright cadence-cassandra-tool cadence-sql-tool cadence cadence-server cadence-bench cadence-canary
 ---> Running in 689359fdaa6b
.bin/copyright
building revive from internal/tools/go.mod...
go: downloading github.com/mgechev/revive v1.2.2-0.20220724073416-db56db0b6a11
go: downloading github.com/mitchellh/go-homedir v1.1.0
go: downloading github.com/BurntSushi/toml v1.2.0
go: downloading github.com/mattn/go-colorable v0.1.12
go: downloading github.com/mgechev/dots v0.0.0-20210922191527-e955255bf517
go: downloading github.com/chavacava/garif v0.0.0-20220630083739-93517212f375
go: downloading github.com/olekukonko/tablewriter v0.0.5
go: downloading golang.org/x/sys v0.0.0-2022061022[130](https://github.com/uber/cadence/actions/runs/4059406201/jobs/6987848251#step:4:131)4-9f5ed59c137d
go: downloading github.com/mattn/go-runewidth v0.0.9
building goimports from internal/tools/go.mod...
Makefile:252: *** idls/ submodule must exist, or build will fail.  Run `git submodule update --init` and try again.  Stop.
The command '/bin/sh -c CGO_ENABLED=0 make copyright cadence-cassandra-tool cadence-sql-tool cadence cadence-server cadence-bench cadence-canary' returned a non-zero code: 2

which comes from at least two things:

1. make copyright [stuff that depends on copyright] doesn't make sense with Make. Order isn't guaranteed like that, and the newly-invalidated tree of dependencies may not be noticed. So that's bad.
2. make .fake-codegen didn't work anyway, because Make noticed other dependencies of lint/codegen/etc were still missing, and it started building them.

The fix is pretty obvious - don't bother trying to touch all the dependencies, just remove the dependency.
This way it trivially does what we want: just calls go build a bunch, without making any changes to files.

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When merged, I'll cherry-pick this over to the 0.25.x branch so we can do a release there.

[coveralls]

Pull Request Test Coverage Report for Build 01860aab-06b5-490b-a64a-04aec331e6d3

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 97 unchanged lines in 16 files lost coverage.
• Overall coverage increased (+0.02%) to 57.237%

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Files with Coverage Reduction	New Missed Lines	%
common/task/weightedRoundRobinTaskScheduler.go	1	89.64%
client/history/client.go	2	38.1%
client/history/metricClient.go	2	45.3%
common/peerprovider/ringpopprovider/config.go	2	81.58%
common/task/parallelTaskProcessor.go	2	92.75%
service/history/handler.go	2	47.15%
service/history/task/transfer_standby_task_executor.go	2	87.24%
common/persistence/dataManagerInterfaces.go	3	58.66%
service/frontend/workflowHandler.go	4	59.98%
service/history/task/transfer_active_task_executor.go	4	72.22%

Totals
Change from base Build 01860a83-5b45-41fc-855a-f94b59a57d2a:	0.02%
Covered Lines:	84983
Relevant Lines:	148476

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💛 - Coveralls