remove validity requirements from the text

nikomatsakis · web-flow · commit 1562830dd265 · 2018-08-30T13:27:45.000-04:00
diff --git a/active_discussion/representation.md b/active_discussion/representation.md
@@ -1,4 +1,4 @@
-# Data structure representation and validity requirements
+# Data structure representation
 
 ## Introduction
 

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-# Data structure representation and validity requirements`
	`1`	`+# Data structure representation`
`2`	`2`
`3`	`3`	`## Introduction`
`4`	`4`