Revert "Add CacherHandler"

[k1LoW]

Reverts #40

[github-actions]

Code Metrics Report

	main (7d46c34)	#42 (ed53c73)	+/-
Coverage	80.3%	80.3%	0.0%
Code to Test Ratio	1:2.0	1:2.0	+0.0
Test Execution Time	32s	36s	+4s

Details

  |                     | main (7d46c34) | #42 (ed53c73) | +/-  |
  |---------------------|----------------|---------------|------|
  | Coverage            |          80.3% |         80.3% | 0.0% |
  |   Files             |              4 |             4 |    0 |
  |   Lines             |            304 |           304 |    0 |
  |   Covered           |            244 |           244 |    0 |
+ | Code to Test Ratio  |          1:2.0 |         1:2.0 | +0.0 |
  |   Code              |            674 |           670 |   -4 |
  |   Test              |           1342 |          1342 |    0 |
- | Test Execution Time |            32s |           36s |  +4s |

Code coverage of files in pull request scope (77.3% → 77.3%)

Files	Coverage	+/-
rc.go	77.3%	0.0%

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Reported by octocov