update gradle.xml with removed kotlin sample #1194

Job	Run time
Gradle Wrappers	5s
Code Samples / action_basics	3m 20s
Code Samples / comparing_string_references_inspection	3m 50s
Code Samples / conditional_operator_intention	3m 50s
Code Samples / editor_basics	3m 11s
Code Samples / facet_basics	3m 26s
Code Samples / framework_basics	3m 10s
Code Samples / live_templates	3m 10s
Code Samples / max_opened_projects	3m 37s
Code Samples / module	3m 13s
Code Samples / project_model	3m 35s
Code Samples / project_view_pane	3m 32s
Code Samples / project_wizard	3m 10s
Code Samples / psi_demo	3m 16s
Code Samples / run_configuration	3m 32s
Code Samples / simple_language_plugin	3m 37s
Code Samples / tool_window	3m 20s
Code Samples / tree_structure_provider	3m 31s
Code Samples Mirror	34s
	58m 59s

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