Language is still listed in the blocks translations and language switcher after it's removal

Here's a fix for this language removal problem :

I removed a language from my site but it was still listed in the blocks translations and language switcher. I made a search through it's related database for the listed name and found only two records containing it insite those tables :

• cache
• variables

In the variables table, it was inside the record i18n_languages. I removed the corresponding language entry from the enabled array, something that looked like s:7:"English"; inside the curly brackets. Then I deleted the record from the cache and reloaded a page and the enabled languages were listed correctly again.