Remove 5.1

library/sonarqube

@@ -4,7 +4,5 @@
 latest: git://github.com/SonarSource/docker-sonarqube@e7ac925f3ae123fa01daa30c5c79da66ed41983f 5.1.1
 5.1.1: git://github.com/SonarSource/docker-sonarqube@e7ac925f3ae123fa01daa30c5c79da66ed41983f 5.1.1
 
-5.1: git://github.com/SonarSource/docker-sonarqube@83e2cbed37a8a6947b130958d0cb2ee7acd42d3a 5.1
-
 lts: git://github.com/SonarSource/docker-sonarqube@83e2cbed37a8a6947b130958d0cb2ee7acd42d3a 4.5.4
 4.5.4: git://github.com/SonarSource/docker-sonarqube@83e2cbed37a8a6947b130958d0cb2ee7acd42d3a 4.5.4