Revert workaround for #569

The workaround is no longer necessary and caused problems when
building with Command Line Tools instead of Xcode

docs/changelog.rst

@@ -11,12 +11,17 @@ Version 10.3
   PyObjC does at this time not support the experimental free threading
   support in Python 3.13.
 
+* :issue:`569`: Removed the workaround for a bug in Xcode 15.0
+
+  The workaround is no longer necessary, and caused problems when
+  building with the Command Line Tools development tools from Apple.
+
 * Updated SDK bindings for macOS 14.5
 
 * A minor change in the (currently private) tooling I use for
   collecting the raw metadata resulted in minor fixes to the framework
-  bindings, in particular for metadata for a number of block typed
-  arguments and return values.
+  bindings, in particular for metadata for a number of block and function
+  typed arguments and return values.
 
 * :issue:`275`: It is now possible to create instances of Objective-C
   classes by calling the class, e.g. ``NSObject()`` instead of

pyobjc-core/setup.py

@@ -594,16 +594,6 @@ def finalize_options(self):
                 CFLAGS.append("-DNO_OBJC2_RUNTIME")
                 EXT_CFLAGS.append("-DNO_OBJC2_RUNTIME")
 
-        lines = subprocess.check_output(
-            ["xcodebuild", "-version"], text=True
-        ).splitlines()
-        if lines[0].startswith("Xcode"):
-            xcode_vers = int(lines[0].split()[-1].split(".")[0])
-            if xcode_vers >= 15:
-                for var in (OBJC_LDFLAGS,):
-                    print("Use old linker with Xcode 15 or later")
-                    var.append("-Wl,-ld_classic")
-
     def run(self):
         verify_platform()