Drop v1util now that 0.3 is cut

[mattmoor]

Fixes: #873

[jonjohnsonjr]

I wish there was a way to notify dependents...

@jromero https://github.com/buildpacks/pack/blob/b94eca823bf12d50900ef21851aadfcfc53d1f80/testhelpers/tar_assertions.go#L136

@cppforlife https://github.com/vmware-tanzu/carvel-kbld/blob/4ac6f68865c23f87a6710d16f674933190d35858/pkg/kbld/imagedesc/described_layer.go#L12-L13

@debugmiller https://github.com/ForAllSecure/rootfs_builder/blob/adbe259b64bfe8e9186d9a1c6be7f7d7fc5eb036/rootfs/extract.go#L182

@achasveachas https://github.com/cloudfoundry/hydrator/blob/919ca7133daa42bf65b99c0af5f67ccac0691ae4/layermodifier/layermodifier.go#L92

[mattmoor]

Most of those folks are VMware, so I'll post to a few internal slack channels.

EDIT: ugh... I'll do it in the new year. I don't have corp stuff on my M1 :P

[jromero]

Thanks @jonjohnsonjr.

Rerouting to @dfreilich :)

[codecov-io]

Codecov Report

Merging #884 (7c86f1b) into master (c95d7bd) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #884   +/-   ##
=======================================
  Coverage   72.76%   72.76%           
=======================================
  Files         108      108           
  Lines        4655     4655           
=======================================
  Hits         3387     3387           
  Misses        758      758           
  Partials      510      510           

Impacted Files	Coverage Δ
pkg/v1/tarball/layer.go	71.17% <100.00%> (ø)

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[dfreilich]

Thanks! We'll get notified automatically when dependabot picks up the new dependency, and it isn't successful, but we'll try to polish it off before then.

[mattmoor]

Going to merge this, if folks are broken they can pin to the 0.3 release.