Drop older tags from OL7 and OL6 release trains

Signed-off-by: Jesse Butler <[email protected]>

library/oraclelinux

@@ -24,25 +24,9 @@ Architectures: amd64
 Directory: 7.5
 
 Tags: 7.4
-Architectures: amd64, arm64v8
+Architectures: arm64v8
 Directory: 7.4
 
-Tags: 7.3
-Architectures: amd64
-Directory: 7.3
-
-Tags: 7.2
-Architectures: amd64
-Directory: 7.2
-
-Tags: 7.1
-Architectures: amd64
-Directory: 7.1
-
-Tags: 7.0
-Architectures: amd64
-Directory: 7.0
-
 Tags: 6-slim
 Architectures: amd64
 Directory: 6-slim
@@ -50,15 +34,3 @@ Directory: 6-slim
 Tags: 6, 6.9
 Architectures: amd64
 Directory: 6.9
-
-Tags: 6.8
-Architectures: amd64
-Directory: 6.8
-
-Tags: 6.7
-Architectures: amd64
-Directory: 6.7
-
-Tags: 6.6
-Architectures: amd64
-Directory: 6.6