clang-tidy: RpcClientTest - lamda function errors

[billpittman]

Showing all the errors reported by clang-tidy:

/data/ultifi/up-cpp/test/coverage/communication/RpcClientTest.cpp:544:11: error: lambda capture 'this' is not used [clang-diagnostic-unused-lambda-capture]
/data/ultifi/up-cpp/test/coverage/communication/RpcClientTest.cpp:587:11: error: lambda capture 'this' is not used [clang-diagnostic-unused-lambda-capture]
/data/ultifi/up-cpp/test/coverage/communication/RpcClientTest.cpp:616:48: error: lambda capture 'this' is not used [clang-diagnostic-unused-lambda-capture]
/data/ultifi/up-cpp/test/coverage/communication/RpcClientTest.cpp:637:48: error: lambda capture 'this' is not used [clang-diagnostic-unused-lambda-capture]
/data/ultifi/up-cpp/test/coverage/communication/RpcClientTest.cpp:658:49: error: lambda capture 'this' is not used [clang-diagnostic-unused-lambda-capture]
/data/ultifi/up-cpp/test/coverage/communication/RpcClientTest.cpp:675:48: error: lambda capture 'this' is not used [clang-diagnostic-unused-lambda-capture]
/data/ultifi/up-cpp/test/coverage/communication/RpcClientTest.cpp:707:11: error: lambda capture 'this' is not used [clang-diagnostic-unused-lambda-capture]
/data/ultifi/up-cpp/test/coverage/communication/RpcClientTest.cpp:744:11: error: lambda capture 'this' is not used [clang-diagnostic-unused-lambda-capture]
/data/ultifi/up-cpp/test/coverage/communication/RpcClientTest.cpp:792:11: error: lambda capture 'this' is not used [clang-diagnostic-unused-lambda-capture]
/data/ultifi/up-cpp/test/coverage/communication/RpcClientTest.cpp:823:26: error: lambda capture 'this' is not used [clang-diagnostic-unused-lambda-capture]
/data/ultifi/up-cpp/test/coverage/communication/RpcClientTest.cpp:845:26: error: lambda capture 'this' is not used [clang-diagnostic-unused-lambda-capture]
/data/ultifi/up-cpp/test/coverage/communication/RpcClientTest.cpp:867:27: error: lambda capture 'this' is not used [clang-diagnostic-unused-lambda-capture]
/data/ultifi/up-cpp/test/coverage/communication/RpcClientTest.cpp:886:26: error: lambda capture 'this' is not used [clang-diagnostic-unused-lambda-capture]
/data/ultifi/up-cpp/test/coverage/communication/RpcClientTest.cpp:1361:39: error: lambda capture 'get_client' is not used [clang-diagnostic-unused-lambda-capture]