Rules enforcement: Video OpenRTB fields cannot only be read from bidder parameters

[patmmccann]

Type of change

• Bugfix
• Feature
• New bidder adapter
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Does this change affect user-facing APIs or examples documented on http://prebid.org?
• Other

Description of change

Solution to #6512

[lgtm-com]

This pull request fixes 2 alerts when merging 5546e1f into 22ad110 - view on LGTM.com

fixed alerts:

• 1 for Useless conditional
• 1 for Client-side cross-site scripting

[lgtm-com]

This pull request fixes 2 alerts when merging a16fc25 into 6957925 - view on LGTM.com

fixed alerts:

• 1 for Useless conditional
• 1 for Client-side cross-site scripting

[patmmccann]

Note fixed for gridnm in #6817 , will resolve conflicts in favor of their change when it gets merged to master
thanks to @TheMediaGrid

[ym-dlabuzov]

We made #6873 to fix this for Yieldmo Bid Adapter

[patmmccann]

Thanks @ym-dlabuzov !! Happy holiday

[patmmccann]

closing and re-opening with the reduced list