remove validation comments from github templates

PiperOrigin-RevId: 272176894

.github/ISSUE_TEMPLATE/bug.md

@@ -55,8 +55,3 @@ Specify the absolute version number. Avoid using terms such as "latest".
 Specify the devices and versions of Android on which the issue can be
 reproduced, and how easily it reproduces. If possible, please test on multiple
 devices and Android versions.
-
-<!-- DO NOT DELETE
-validate_template=true
-template_path=.github/ISSUE_TEMPLATE/bug.md
--->

.github/ISSUE_TEMPLATE/content_not_playing.md

@@ -51,8 +51,3 @@ log snippet is NOT sufficient. Please attach the captured bug report as a file.
 If you don't wish to post it publicly, please submit the issue, then email the
 bug report to dev.exoplayer@gmail.com using a subject in the format
 "Issue #1234", where "#1234" should be replaced with your issue number.
-
-<!-- DO NOT DELETE
-validate_template=true
-template_path=.github/ISSUE_TEMPLATE/content_not_playing.md
--->

.github/ISSUE_TEMPLATE/feature_request.md

@@ -28,8 +28,3 @@ A clear and concise description of your proposed solution, if you have one.
 ### Alternatives considered
 A clear and concise description of any alternative solutions you considered,
 if applicable.
-
-<!-- DO NOT DELETE
-validate_template=true
-template_path=.github/ISSUE_TEMPLATE/feature_request.md
--->

.github/ISSUE_TEMPLATE/question.md

@@ -48,8 +48,3 @@ dev.exoplayer@gmail.com using a subject in the format "Issue #1234", where
 "#1234" should be replaced with your issue number. Provide all the metadata we'd
 need to play the content like drm license urls or similar. If the content is
 accessible only in certain countries or regions, please say so.
-
-<!-- DO NOT DELETE
-validate_template=true
-template_path=.github/ISSUE_TEMPLATE/question.md
--->