remove unused imports (#1377)

Kyle-Verhoog · Kyle-Verhoog · commit 41f0a16f7495 · 2020-05-12T16:33:44.000-04:00
diff --git a/ddtrace/profiling/collector/stack.pyx b/ddtrace/profiling/collector/stack.pyx
@@ -1,8 +1,6 @@
 """CPU profiling collector."""
 from __future__ import absolute_import
 
-import logging
-import os
 import sys
 import threading
 
