chore: drop v2beta1 api version

[tao12345666333]

Signed-off-by: Jintao Zhang zhangjintao9020@gmail.com

Type of change:

• Bugfix
• New feature provided
• Improve performance
• Backport patches

What this PR does / why we need it:

follow #707

I will introduce v2 stable API version in v1.5, and remove v2beta1, this is the first action.

Pre-submission checklist:

• Did you explain what problem does this PR solve? Or what new features have been added?
• Have you added corresponding test cases?
• Have you modified the corresponding document?
• Is this PR backward compatible? If it is not backward compatible, please discuss on the mailing list first

[codecov-commenter]

Codecov Report

Merging #928 (10e8887) into master (2178857) will increase coverage by 0.99%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #928      +/-   ##
==========================================
+ Coverage   31.91%   32.91%   +0.99%     
==========================================
  Files          73       73              
  Lines        7900     7660     -240     
==========================================
  Hits         2521     2521              
+ Misses       5103     4863     -240     
  Partials      276      276              

Impacted Files	Coverage Δ
pkg/api/validation/apisix_consumer.go	0.00% <ø> (ø)
pkg/api/validation/apisix_route.go	24.59% <ø> (+2.85%)	⬆️
pkg/api/validation/apisix_tls.go	0.00% <ø> (ø)
pkg/api/validation/apisix_upstream.go	0.00% <ø> (ø)
pkg/config/config.go	64.64% <ø> (ø)
pkg/ingress/apisix_route.go	0.00% <ø> (ø)
pkg/ingress/controller.go	0.95% <ø> (+<0.01%)	⬆️
pkg/ingress/status.go	0.00% <ø> (ø)
pkg/kube/translation/apisix_route.go	30.93% <ø> (+8.50%)	⬆️
pkg/kube/translation/translator.go	46.07% <ø> (ø)
... and 2 more

---

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[gxthrj]

There are some v2beta1 need to change in docs.

[tao12345666333]

Yes, I created an issue for tracking #929