Delete Snappy Constraint Update code snippet, 'cos snp_updateConstraints don't exist.

CodeSnippets/Snappy Constraint Update.codesnippet

@@ -1,26 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>IDECodeSnippetCompletionPrefix</key>
-	<string>snp_update</string>
-	<key>IDECodeSnippetCompletionScopes</key>
-	<array>
-		<string>TopLevel</string>
-	</array>
-	<key>IDECodeSnippetContents</key>
-	<string>&lt;#view#&gt;.snp_updateConstraints { make in
-    &lt;#code#&gt;
-}</string>
-	<key>IDECodeSnippetIdentifier</key>
-	<string>EBC85411-DF71-4954-9393-628A1BED8BBE</string>
-	<key>IDECodeSnippetLanguage</key>
-	<string>Xcode.SourceCodeLanguage.Swift</string>
-	<key>IDECodeSnippetTitle</key>
-	<string>Snappy Constraint Update</string>
-	<key>IDECodeSnippetUserSnippet</key>
-	<true/>
-	<key>IDECodeSnippetVersion</key>
-	<integer>0</integer>
-</dict>
-</plist>

README.md

@@ -280,8 +280,6 @@ Copy the included code snippets to ``~/Library/Developer/Xcode/UserData/CodeSnip
 
 `snp_make` -> `<view>.snp_makeConstraints { make in <code> }`
     
-`snp_update` -> `<view>.snp_updateConstraints { make in <code> }`
-    
 `snp_remake` -> `<view>.snp_remakeConstraints { make in <code> }`
 
 ## TODO