[#8939] Remove profiler-optional-jdk7 for JDK8

[emeroad]

No description provided.

[codecov]

Codecov Report

Merging #8940 (13ff2dd) into master (7d69310) will decrease coverage by 0.00%.
The diff coverage is 75.00%.

@@             Coverage Diff              @@
##             master    #8940      +/-   ##
============================================
- Coverage     39.92%   39.91%   -0.01%     
+ Complexity    11658    11648      -10     
============================================
  Files          3273     3269       -4     
  Lines         89752    89715      -37     
  Branches       9989     9988       -1     
============================================
- Hits          35833    35813      -20     
+ Misses        50850    50836      -14     
+ Partials       3069     3066       -3     

Impacted Files	Coverage Δ
...nt/profiler/metric/buffer/DefaultBufferMetric.java	0.00% <ø> (ø)
.../profiler/metric/cpu/ibm/DefaultCpuLoadMetric.java	0.00% <ø> (ø)
...ofiler/metric/cpu/oracle/DefaultCpuLoadMetric.java	0.00% <ø> (ø)
...edescriptor/oracle/OracleFileDescriptorMetric.java	0.00% <ø> (ø)
...t/profiler/shutdown/Java7ShutdownHookRegister.java	0.00% <ø> (ø)
...or/metric/response/ReuseResponseTimeCollector.java	88.63% <75.00%> (+8.63%)	⬆️
...vercorp/pinpoint/web/vo/ApplicationAgentsList.java	69.73% <0.00%> (-2.64%)	⬇️
...n/server/bo/serializer/trace/v2/SpanEncoderV0.java	82.88% <0.00%> (-0.54%)	⬇️
...n/server/bo/serializer/trace/v2/SpanDecoderV0.java	81.27% <0.00%> (-0.46%)	⬇️
... and 3 more

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