Use preferred braces style

Enforce braces in 'do-while' statement  

Use braces to separate 'do-while' statement body.

Enforce braces in 'for' statement  

Use braces to separate 'for' statement body.

Enforce braces in 'if' statement  

Use braces to separate 'if' statement body.

Enforce braces in 'while' statement  

Use braces to separate 'while' statement body.

Remove redundant braces  

Braces can be safely removed without changing code semantics.