I don't really know, but this would be some work as we had to add an nls folder with some subfolders and strings.js (twice, one in root and one in nls). So it maybe would save some memory, but it may also affect the loading performance (more files must be read from disk) and the size of an installed Brackets version.

But we don't need that now cause there aren't any memory problems (systems have much RAM by default).