chore: remove patch branch from e2e Cargo.toml (#1693)

# Summary

This PR removes the obsolete patch branch from the `e2e` test's
`Forc.toml`. The `#[patch]` section is left in the `Forc.toml` for
expected future use.

# Checklist

- [x] All **changes** are **covered** by **tests** (or not applicable)
- [x] All **changes** are **documented** (or not applicable)
- [x] I **reviewed** the **entire PR** myself (preferably, on GH UI)
- [x] I **described** all **Breaking Changes** (or there's none)

Author: ironcev

e2e/Forc.toml

@@ -120,4 +120,4 @@ members = [
 ]
 
 [patch.'https://github.com/fuellabs/sway']
-std = { git = "https://github.com/fuellabs/sway", branch = "ironcev/error-codes-in-abi-json" }
+std = { git = "https://github.com/fuellabs/sway" }