Remove unused DB-writer-related constants in summary_ops_v2.py
PiperOrigin-RevId: 362324228
Change-Id: Iaa36970f3bfce6c05567c3fe452b4b5f60e80a1f
diff --git a/tensorflow/python/ops/summary_ops_v2.py b/tensorflow/python/ops/summary_ops_v2.py
index f1630b6..b693818 100644
--- a/tensorflow/python/ops/summary_ops_v2.py
+++ b/tensorflow/python/ops/summary_ops_v2.py
@@ -54,10 +54,6 @@
# as a legacy API for tf.contrib.summary in TF 1.x.
_SUMMARY_WRITER_INIT_COLLECTION_NAME = "_SUMMARY_WRITER_V2"
-_EXPERIMENT_NAME_PATTERNS = re.compile(r"^[^\x00-\x1F<>]{0,256}$")
-_RUN_NAME_PATTERNS = re.compile(r"^[^\x00-\x1F<>]{0,512}$")
-_USER_NAME_PATTERNS = re.compile(r"^[a-z]([-a-z0-9]{0,29}[a-z0-9])?$", re.I)
-
class _SummaryState(threading.local):
