Remove deprecated global option for debug build (#1848)

RM deprecated global option for debug build
Signed-off-by: Kirthi Shankar Sivamani <ksivamani@nvidia.com>

build_tools/utils.py

@@ -21,13 +21,7 @@ from typing import List, Optional, Tuple, Union
 @functools.lru_cache(maxsize=None)
 def debug_build_enabled() -> bool:
     """Whether to build with a debug configuration"""
-    for arg in sys.argv:
-        if arg == "--debug":
-            sys.argv.remove(arg)
-            return True
-    if int(os.getenv("NVTE_BUILD_DEBUG", "0")):
-        return True
-    return False
+    return bool(int(os.getenv("NVTE_BUILD_DEBUG", "0")))
 
 
 @functools.lru_cache(maxsize=None)

docs/installation.rst

@@ -112,7 +112,7 @@ To build the C++ extensions with debug symbols, e.g. with the `-g` flag:
 
 .. code-block:: bash
 
-  pip3 install --no-build-isolation . --global-option=--debug
+  NVTE_BUILD_DEBUG=1 pip3 install --no-build-isolation .
 
 .. include:: ../README.rst
    :start-after: troubleshooting-begin-marker-do-not-remove