go.mod: remove exclude rules

Commit 640c7de added these exclude
rules as a temporary workaround until these transitive dependency
versions would be gone;

> downgrade go-difflib and go-spew to tagged releases
>
> These dependencies were updated to "master" in some modules we depend on,
> but have no code-changes since their last release. Unfortunately, this also
> causes a ripple effect, forcing all users of the containerd module to also
> update these dependencies to an unrelease / un-tagged version.
>
> Both these dependencies will unlikely do a new release in the near future,
> so exclude these versions so that we can downgrade to the current release.

Kubernetes, and other dependencies have reverted those bumps, so these
exclude rules are no longer needed.

This reverts commit 640c7de.

Signed-off-by: Sebastiaan van Stijn <[email protected]>

Author: thaJeztah

go.mod

@@ -155,12 +155,3 @@ require (
 	gopkg.in/ini.v1 v1.67.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
-
-exclude (
-	// FIXME(thaJeztah): remove this once kubernetes updated their dependencies to no longer need this.
-	//
-	// For additional details, see this PR and links mentioned in that PR:
-	// https://github.com/kubernetes-sigs/kustomize/pull/5830#issuecomment-2569960859
-	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc
-	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2
-)