Slightly modify Code of Conduct

CODE_OF_CONDUCT.md

@@ -1,4 +1,4 @@
-# Contributor Covenant Code of Conduct
+# Code of Conduct
 
 ## Our Pledge
 
@@ -28,13 +28,11 @@ community include:
 Examples of unacceptable behavior include:
 
 * The use of sexualized language or imagery, and sexual attention or advances of
-  any kind
+  any kind without explicit consent
 * Trolling, insulting or derogatory comments, and personal or political attacks
 * Public or private harassment
 * Publishing others' private information, such as a physical or email address,
   without their explicit permission
-* Other conduct which could reasonably be considered inappropriate in a
-  professional setting
 
 ## Enforcement Responsibilities