proxy: remove some log lines #186

Job	Run time
build (darwin, amd64)	34s
build (darwin, arm64)	41s
build (android, arm64)	35s
build (linux, amd64)	42s
build (linux, arm64)	13s
build (linux, arm, 7)	34s
build (linux, riscv64)	32s
build (linux, mips64)	42s
build (linux, mips64le)	34s
build (linux, mips)	41s
build (linux, mipsle)	33s
build (linux, mips64, softfloat)	43s
build (linux, mips64le, softfloat)	48s
build (linux, mips, softfloat)	35s
build (linux, mipsle, softfloat)	34s
build (windows, amd64)	35s
build (windows, arm64)	44s
build (windows, 386)	34s
	10m 54s

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