pmb: Remove unnecessary pass statements (MR 2537)

See https://docs.astral.sh/ruff/rules/unnecessary-placeholder

pmb/build/kconfig.py

@@ -206,7 +206,6 @@ def _init(pkgname: str, arch: Arch | None) -> tuple[str, Arch, Any, Chroot, Env]
 def migrate_config(pkgname: str, arch: Arch | None) -> None:
     pkgname, arch, apkbuild, chroot, env = _init(pkgname, arch)
     _make(chroot, "oldconfig", env, pkgname, arch, apkbuild)
-    pass
 
 
 def edit_config(pkgname: str, arch: Arch | None, config_ui: KConfigUI) -> None:

pmb/helpers/exceptions.py

@@ -7,12 +7,8 @@ class BuildFailedError(Exception):
     separately from NonBugError as it needs to be treated differently as we want to hint
     to users that they can check the log for more information when a build fails."""
 
-    pass
-
 
 class NonBugError(Exception):
     """Exception which originates from a problem not caused by pmbootstrap's code. This
     could for example be raised if there is an error in a package pmbootstrap is
     interacting with in some way."""
-
-    pass

pmb/install/losetup.py

@@ -54,7 +54,6 @@ def mount(img_path: Path, _sector_size: int | None = None) -> Path:
         except RuntimeError as e:
             if i == 4:
                 raise e
-            pass
 
     raise AssertionError("This should never be reached")