refactor: take out peas hosts from cli

[bwanglzu]

this PR taks out peas_hosts from core.

[codecov]

Codecov Report

Merging #4171 (bae2cd3) into master (def0a12) will increase coverage by 1.02%.
The diff coverage is 89.21%.

@@            Coverage Diff             @@
##           master    #4171      +/-   ##
==========================================
+ Coverage   86.53%   87.56%   +1.02%     
==========================================
  Files         118      120       +2     
  Lines        8338     8570     +232     
==========================================
+ Hits         7215     7504     +289     
+ Misses       1123     1066      -57     

Flag	Coverage Δ
daemon	40.94% <39.21%> (-1.17%)	⬇️
jina	86.77% <89.21%> (+1.09%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
jina/jaml/parsers/base.py	60.00% <0.00%> (ø)
jina/types/request/__init__.py	100.00% <ø> (ø)
jina/proto/jina_pb2.py	58.10% <3.33%> (ø)
jina/clients/mixin.py	90.47% <25.00%> (ø)
jina/flow/builder.py	80.00% <33.33%> (ø)
jina/parsers/helper.py	45.18% <50.00%> (-0.34%)	⬇️
jina/peapods/runtimes/__init__.py	61.11% <54.54%> (ø)
jina/clients/base/helper.py	85.71% <60.00%> (ø)
jina/peapods/runtimes/head/__init__.py	91.85% <61.53%> (+4.06%)	⬆️
jina/clients/request/__init__.py	73.91% <66.66%> (ø)
... and 101 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update eb1b605...bae2cd3. Read the comment docs.

[github-actions]

Latency summary

Current PR yields:

• 🐢🐢 index QPS at 1026, delta to last 2 avg.: -16%
• 🐢🐢 query QPS at 16, delta to last 2 avg.: -31%
• 🐢🐢 dam extend QPS at 28911, delta to last 2 avg.: -19%
• 🐢🐢 avg flow time within 1.9815 seconds, delta to last 2 avg.: +42%
• 🐎🐎 import jina within 0.4579 seconds, delta to last 2 avg.: +7%

Breakdown

Version	Index QPS	Query QPS	DAM Extend QPS	Avg Flow Time (s)	Import Time (s)
current	1026	16	28911	1.9815	0.4579
2.6.4	1121	19	29665	1.6227	0.4665
2.6.3	1348	27	42564	1.149	0.3881

Backed by latency-tracking. Further commits will update this comment.

[github-actions]

📝 Docs are deployed on https://refactor-remove-peas-hosts--jina-docs.netlify.app 🎉