Update .gitlab-ci.yml

.gitlab-ci.yml

@@ -47,21 +47,11 @@ cache:
   except:
     - master
 
-# Validate merge requests using JDK7
-validate:jdk7:
-  <<: *validate
-  image: maven:3.3.9-jdk-7
-
 # Validate merge requests using JDK8
 validate:jdk8:
   <<: *validate
   image: maven:3.3.9-jdk-8
 
-# Verify merge requests using JDK7
-verify:jdk7:
-  <<: *verify
-  image: maven:3.3.9-jdk-7
-
 # Verify merge requests using JDK8
 verify:jdk8:
   <<: *verify