chore: remove unused code

[guillermomachado]

Removed unused code.

[github-actions]

💯 Test Coverage

Lines	Statements	Branches	Functions
	53% (265/500)	45.58% (98/215)	38.02% (73/192)

😎 Tests Results

Tests	Skipped	Failures	Errors	Time
70	0 💤	0 ❌	0 🔥	29.026s ⏱️

👀 Tests Details • (53%)

File	% Stmts	% Branch	% Funcs	% Lines	Uncovered Line #s
All files	53	45.58	38.02	53.57
api	0	100	0	0
index.tsx	0	0	0	0
query-factory.ts	0	100	0	0	10–27
app/(app)	0	0	0	0
_layout.tsx	0	0	0	0	13–67
index.tsx	0	100	0	0	4
app/feed	0	100	0	0
[id].tsx	0	100	0	0	6
add-post.tsx	0	100	0	0	3
components/settings	0	0	0	0
language-item.tsx	0	100	0	0	10–31
core/i18n	50	23.07	50	48.14
resources.ts	100	100	100	100
utils.tsx	36.36	23.07	50	33.33	28–38, 43–55