[bugfix] psvr2 shader parse error

[NuShrike]

Compilation on PSVR2 has error/warning about being unable to parse the first line of the shader file.

We've seen this before as either a UTF8 BOM issue where it should be removed, or added.

Generally editing the file with an Editor (such as Visual Studio Code) resolves the issue.

[unity-cla-assistant]

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0 out of 2 committers have signed the CLA.

:x: Joseph Lee
:x: dschwarz-tripp

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