This removes all usage of soft removals except for the "pending delete"
system implemented for projects. This in turn simplifies all the query
plans of the models that used soft removals. Since we don't really use
soft removals for anything useful there's no point in keeping it around.

This _does_ mean that hard removals of issues (which only admins can do
if I'm not mistaken) can influence the "iid" values, but that code is
broken to begin with. More on this (and how to fix it) can be found in
https://gitlab.com/gitlab-org/gitlab-ce/issues/31114.

Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/37447

Resolve "No Rendering of emoji's in Group-Overview after update"

Closes #40549

See merge request gitlab-org/gitlab-ce!16098

Remove the Commit#tree method

See merge request gitlab-org/gitlab-ce!16236

Remove unused push_code_to_protected_branches

Closes #38056

See merge request gitlab-org/gitlab-ce!16253

Incorporate RemoteService.FetchInternalRemote Gitaly RPC

Closes gitaly#857

See merge request gitlab-org/gitlab-ce!16140

Move invites spinach test to Rspec

See merge request gitlab-org/gitlab-ce!16126

Move explore groups spinach test to RSpec

See merge request gitlab-org/gitlab-ce!16129

Resolve "Add graph value to hover"

Closes #38030

See merge request gitlab-org/gitlab-ce!16261

Fix slash commands dropdown description

See merge request gitlab-org/gitlab-ce!16125

disables the shortcut to the issue boards when issues are disabled

Closes #41244

See merge request gitlab-org/gitlab-ce!16020

Protected branch is now created for default branch on import

Closes #3968

See merge request gitlab-org/gitlab-ce!16198

Merge branch '39957-redirect-to-gpc-page-if-users-try-to-create-a-cluster-but-the-account-is-not-enabled' into 'master'

Resolve "Redirect to GCP page if users try to create a cluster but the account is not enabled"

Closes #39957 and #41410

See merge request gitlab-org/gitlab-ce!15665

Fix restoring associations with import/export

Closes #41646

See merge request gitlab-org/gitlab-ce!16221

10.4 licenses update

Closes #10

See merge request gitlab-org/gitlab-ce!16269

10.4 templates update

Closes #10

See merge request gitlab-org/gitlab-ce!16266

Fix error 500 when viewing commit and merge request diffs

Closes #41735

See merge request gitlab-org/gitlab-ce!16272

Due to the refactoring in !16082, `Blob#batch` no longer falls back
to a default `blob_size_limit`. Since `Repository#batch_blobs` was using
a default `nil` value, this would cause issues in the `Blob#find_by_rugged`
method.

This fix here is to be consistent and use a non-nil default value in
`Repository#batch_blobs`.

The problem was masked in development and tests because Gitaly is always
enabled by default for all features.

Closes #41735

Merge branch 'master' into 39957-redirect-to-gpc-page-if-users-try-to-create-a-cluster-but-the-account-is-not-enabled

Resolve "Improve non-triggered manual action job detail page"

Closes #22643 and #37843

See merge request gitlab-org/gitlab-ce!15991

Resolve "Clearing the cache"

Closes #41249

See merge request gitlab-org/gitlab-ce!16067

* master: (114 commits)