Simplify _should_build

The need_wheel argument is now always False

Author: sbidoul

src/pip/_internal/wheel_builder.py

@@ -43,26 +43,13 @@ def _contains_egg_info(s: str) -> bool:
 
 def _should_build(
     req: InstallRequirement,
-    need_wheel: bool,
 ) -> bool:
     """Return whether an InstallRequirement should be built into a wheel."""
     assert not req.constraint
 
     if req.is_wheel:
-        if need_wheel:
-            logger.info(
-                "Skipping %s, due to already being wheel.",
-                req.name,
-            )
         return False
 
-    if need_wheel:
-        # i.e. pip wheel, not pip install
-        return True
-
-    # From this point, this concerns the pip install command only
-    # (need_wheel=False).
-
     if not req.source_dir:
         return False
 
@@ -76,7 +63,7 @@ def _should_build(
 def should_build_for_install_command(
     req: InstallRequirement,
 ) -> bool:
-    return _should_build(req, need_wheel=False)
+    return _should_build(req)
 
 
 def _should_cache(