en_tn/2ki/15/35.md

the high places were not taken away

This can be stated in active form. Alternate translation: "no one took away the high places" or "Jotham did not have anyone take the high places away" (See: rc://en/ta/man/translate/figs-activepassive)

were not taken away

Being taken away represents being destroyed. Alternate translation: "were not destroyed" (See: rc://en/ta/man/translate/figs-metaphor)

Jotham built the upper gate

"Jotham built" represents Jotham making his workers build it. Alternate translation: "Jotham had his workers build the upper gate" (See: rc://en/ta/man/translate/figs-metonymy)