Revert Traffic Monitor changes for bandwidth bug

[rimashah25]

Reverts back all the TM changes to fix bandwidth bug

---

Which Traffic Control components are affected by this PR?

• Traffic Monitor

What is the best way to verify this PR?

If this is a bugfix, which Traffic Control versions contained the bug?

7.0.1

PR submission checklist

• This PR has tests
• This PR has documentation
• This PR has a CHANGELOG.md entry
• This PR DOES NOT FIX A SERIOUS SECURITY VULNERABILITY (see the Apache Software Foundation's security guidelines for details)

[codecov]

Codecov Report

Merging #7606 (3ae5fda) into master (4cc489c) will decrease coverage by 36.84%.
The diff coverage is 100.00%.

@@              Coverage Diff              @@
##             master    #7606       +/-   ##
=============================================
- Coverage     65.22%   28.39%   -36.84%     
  Complexity       98       98               
=============================================
  Files           313      681      +368     
  Lines         12292    79562    +67270     
  Branches        896      896               
=============================================
+ Hits           8018    22593    +14575     
- Misses         3923    55014    +51091     
- Partials        351     1955     +1604     

Flag	Coverage Δ
golib_unit	48.59% <ø> (?)
grove_unit	4.60% <ø> (?)
t3c_unit	5.29% <ø> (?)
traffic_monitor_unit	21.28% <100.00%> (?)
traffic_ops_integration	79.18% <ø> (+9.76%)	⬆️
traffic_ops_unit	23.06% <ø> (?)
traffic_portal_v2	74.35% <ø> (ø)
traffic_stats_unit	10.14% <ø> (?)
unit_tests	27.34% <100.00%> (-47.02%)	⬇️
v3	?
v4	79.18% <ø> (ø)
v5	?

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

Impacted Files	Coverage Δ
traffic_monitor/cache/cache.go	45.51% <ø> (ø)
traffic_monitor/health/cache.go	59.28% <100.00%> (ø)

... and 592 files with indirect coverage changes

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