Remove double semicolons

[dzenanz]

See discussion here for context:
#5108 (comment)

Double semicolons (;;) should only be removed from C++, not from bash etc.

[seanm]

BTW clang can fix these automatically with -Xclang -fix-only-warnings and -Wextra-semi

[dzenanz]

Could you give that a try, Sean?

[sananthanarayan]

@dzenanz Can I work on this issue?

[dzenanz]

Sure. If you don't make significant progress by the start of the hackathon next week, it would be good if you summarized your findings/impressions and unassigned yourself, so other hackathon attendees could have a crack at it.

[sananthanarayan]

@dzenanz Looking through just a few files so far and a lot of places where there is double semicolons are with for loops causing an infinite loop. This will require quite a lot of refactoring to ensure for loop performs at max efficiency

[sananthanarayan]

@dzenanz Here is the PR I created doing the files I could make changes to that were not for loops

[sananthanarayan]

#5135

[sananthanarayan]

@dzenanz I have undid the changes from the bash scripts.