[TUTORIAL DEPENDENCY REMOVAL] Add cuda_ctc_decoder_tutorial to sphinx ignore regexp (#4026)

Co-authored-by: Sam Anklesaria <[email protected]>

Author: samanklesaria

docs/source/conf.py

@@ -121,9 +121,13 @@ def _get_pattern():
         }
 
     ret = {"filename_pattern": "tutorial.py"}
+    no_build = r"/examples/tutorials/asr_inference_with_cuda_ctc_decoder_tutorial.py"
     if os.getenv("GALLERY_PATTERN"):
         # See https://github.com/pytorch/tutorials/blob/cbf2238df0e78d84c15bd94288966d2f4b2e83ae/conf.py#L75-L83
-        ret["ignore_pattern"] = r"/(?!" + re.escape(os.getenv("GALLERY_PATTERN")) + r")[^/]+$"
+        ret["ignore_pattern"] = r"(/(?!" + re.escape(os.getenv("GALLERY_PATTERN")) + r")[^/]+$)"
+        ret["ignore_pattern"] += "|(" + no_build + ")"
+    else:
+        ret["ignore_pattern"] = no_build
     return ret