remove PY37, everything is PY37

Author: sentrivana

sentry_sdk/_compat.py

@@ -9,7 +9,6 @@
     T = TypeVar("T")
 
 
-PY37 = sys.version_info[0] == 3 and sys.version_info[1] >= 7
 PY38 = sys.version_info[0] == 3 and sys.version_info[1] >= 8
 PY310 = sys.version_info[0] == 3 and sys.version_info[1] >= 10
 PY311 = sys.version_info[0] == 3 and sys.version_info[1] >= 11