Remove product_category from metrics yml

config/metrics/counts_28d/20210216175055_merge_requests.yml

...s_with_disable_overriding_approvers_per_merge_request.yml

...ithout_disable_overriding_approvers_per_merge_request.yml

...etrics/counts_28d/20210216175101_merge_requests_users.yml

config/metrics/counts_28d/20210216175109_suggestions.yml

...ounts_28d/20210216175113_merge_request_action_monthly.yml

...0210216175117_i_source_code_code_intelligence_monthly.yml

...nts_28d/20210216175120_i_code_review_mr_diffs_monthly.yml

...16175124_i_code_review_user_single_file_diffs_monthly.yml

...0216175128_i_code_review_mr_single_file_diffs_monthly.yml

...d/20210216175132_i_code_review_user_create_mr_monthly.yml

...8d/20210216175136_i_code_review_user_close_mr_monthly.yml

...d/20210216175140_i_code_review_user_reopen_mr_monthly.yml

...8d/20210216175144_i_code_review_user_merge_mr_monthly.yml

...16175148_i_code_review_user_create_mr_comment_monthly.yml

...0216175152_i_code_review_user_edit_mr_comment_monthly.yml

...16175156_i_code_review_user_remove_mr_comment_monthly.yml

...10216175159_i_code_review_user_add_suggestion_monthly.yml

...216175203_i_code_review_user_apply_suggestion_monthly.yml

...8d/20210216175405_clusters_applications_cert_managers.yml