There's no need for `case=[xxx]` in table tests, Go does a good job of
formatting the test output and we're just adding the same information
for every test output line.
Previously:
```console
$ go test -count=1 -v -run=TestPromptForConfirmation ./cli/command
=== RUN TestPromptForConfirmation
=== RUN TestPromptForConfirmation/case=SIGINT
=== RUN TestPromptForConfirmation/case=no
=== RUN TestPromptForConfirmation/case=yes
=== RUN TestPromptForConfirmation/case=any
=== RUN TestPromptForConfirmation/case=with_space
=== RUN TestPromptForConfirmation/case=reader_closed
--- PASS: TestPromptForConfirmation (0.00s)
--- PASS: TestPromptForConfirmation/case=SIGINT (0.00s)
--- PASS: TestPromptForConfirmation/case=no (0.00s)
--- PASS: TestPromptForConfirmation/case=yes (0.00s)
--- PASS: TestPromptForConfirmation/case=any (0.00s)
--- PASS: TestPromptForConfirmation/case=with_space (0.00s)
--- PASS: TestPromptForConfirmation/case=reader_closed (0.00s)
PASS
ok github.com/docker/cli/cli/command 0.013s
```
After:
```console
go test -count=1 -v -run=TestPromptForConfirmation ./cli/command
=== RUN TestPromptForConfirmation
=== RUN TestPromptForConfirmation/SIGINT
=== RUN TestPromptForConfirmation/no
=== RUN TestPromptForConfirmation/yes
=== RUN TestPromptForConfirmation/any
=== RUN TestPromptForConfirmation/with_space
=== RUN TestPromptForConfirmation/reader_closed
--- PASS: TestPromptForConfirmation (0.00s)
--- PASS: TestPromptForConfirmation/SIGINT (0.00s)
--- PASS: TestPromptForConfirmation/no (0.00s)
--- PASS: TestPromptForConfirmation/yes (0.00s)
--- PASS: TestPromptForConfirmation/any (0.00s)
--- PASS: TestPromptForConfirmation/with_space (0.00s)
--- PASS: TestPromptForConfirmation/reader_closed (0.00s)
PASS
ok github.com/docker/cli/cli/command 0.009s
```
Signed-off-by: Laura Brehm <laurabrehm@hey.com>
1d4a7ae082