code_style: remove duplicated event handlers #4231

Job	Run time
Prepare version string	4s
Build / Build Windows ARM64	3m 30s
Build / Build Linux (arm64)	3m 22s
Build / Build Linux	3m 12s
Build / Build Windows x64	3m 11s
Build / Build macOS (Intel)	3m 7s
Build / Build macOS (Apple Silicon)	3m 48s
Package / Package Windows (win-x64)	23s
Package / Package macOS (osx-arm64)	17s
Package / Package Windows (win-arm64)	24s
Package / Package Linux (linux-x64)	1m 0s
Package / Package macOS (osx-x64)	20s
Package / Package Linux (linux-arm64)	52s
	23m 30s

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