Remove triagebot.toml #106

Job	Run time
CI-macOS (stable, aarch64-apple-darwin)	17s
CI (stable, x86_64-unknown-linux-gnu)	22s
CI (nightly, x86_64-unknown-linux-gnu, true)	22s
CI (1.65.0, x86_64-unknown-linux-gnu)	3m 34s
CI-macOS (1.65.0, x86_64-apple-darwin)	3m 43s
CI (stable, armv7-unknown-linux-gnueabihf)	29s
CI-macOS (stable, x86_64-apple-darwin)	28s
CI-macOS (1.65.0, aarch64-apple-darwin)	3m 50s
	13m 5s

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