Update Makefile and goreleaser config for more generic/consistent builds

[joelanford]

Cleaning up unused files and bringing the catalogd build configuration more in line with operator-controller and rukpak.

Notable changes:

• Produce a single container image rather than one for each binary
• Use goreleaser to build the binaries for both local builds and release builds to ensure consistent build environment variables and flags.
• De-duplicate lines for setting and exporting environment variables.
• make run now installs catalogd into a fresh kind cluster. This aligns with operator-controller and rukpak. The former make run (which ran the manager binary locally) command is removed because it won't easily scale to handle projects that require multiple running binaries (e.g. a webhook, a controller, an apiserver, etc)
• Remove references and files related to the now non-existent apiserver.

Primary motivation is to make sure that the downstreaming process for OLMv1 repositories is consistent, that the automation is consistent, and that we can re-use as much as possible from upstream when building downstream.

[everettraven]

A couple questions/comments but overall this looks good to me

/lgtm

[openshift-ci]

New changes are detected. LGTM label has been removed.