src: remove unused agent_ in node_trace_buffer
Currently the following compiler warning is generated:
In file included from ../src/tracing/node_trace_buffer.cc:1:
../src/tracing/node_trace_buffer.h:75:10:
warning: private field 'agent_' is not used [-Wunused-private-field]
Agent* agent_;
^
1 warning generated.
This commit removes the private member from the header and also from the constructors initializer list.
I was not sure if it should be removed completely from the constructor or not, but hopefully someone can shed some light on whether it should.
Checklist
-
make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
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