Remove example templates for various programming languages (Node.js, … #11

Job	Run time
Lint Node.js examples	24s
Lint Go examples	45s
Lint PHP examples	21s
Lint Java examples	3m 1s
Lint C# examples	8m 18s
Validate content quality	8s
Lint Bash examples	34s
Lint Kotlin examples	7m 23s
Lint Python examples	11s
Lint Rust examples	37m 59s
Lint Ruby examples	11s
Validate example pack structure	5s
	59m 20s

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