Redundant LaTeX

Redundant escape when Unicode is enabled

When unicode is enabled (see * Unsupported Unicode character) then you can use the unicode character instead of escaping the diacritic, so you can write ú instead of \'u.

Redundant use of \par

Unnecessary whitespace in section commands

Instead of \section{test }\label{sec:test}, write \section{test}\label{sec:test} because the whitespace will not be rendered.