rootio: remove redundant Create+compression test

Author: sbinet

go.sum

@@ -66,8 +66,6 @@ github.com/peterh/liner v1.1.0 h1:f+aAedNJA6uk7+6rXsYBnhdo4Xux7ESLe+kcuVUF5os=
 github.com/peterh/liner v1.1.0/go.mod h1:CRroGNssyjTd/qIG2FyxByd2S8JEAZXBl4qUrZf8GS0=
 github.com/pierrec/lz4 v2.0.4-0.20180826165652-dbe9298ce099+incompatible h1:XtKvvsvNaQSc3fh9mBqTTVhbxNsLPk9XmA7o3U5VJvI=
 github.com/pierrec/lz4 v2.0.4-0.20180826165652-dbe9298ce099+incompatible/go.mod h1:pdkljMzZIN41W+lC3N2tnIh5sFi+IEE17M5jbnwPHcY=
-github.com/pierrec/xxHash v0.0.0-20170714082455-a0006b13c722 h1:nDDVHJzMIpkkKZpBBhV60OLwII/BvZSn4PijkMEKdTo=
-github.com/pierrec/xxHash v0.0.0-20170714082455-a0006b13c722/go.mod h1:w2waW5Zoa/Wc4Yqe0wgrIYAGKqRMf7czn2HNKXmuL+I=
 github.com/pierrec/xxHash v0.1.1 h1:KP4NrV9023xp3M4FkTYfcXqWigsOCImL1ANJ7sh5vg4=
 github.com/pierrec/xxHash v0.1.1/go.mod h1:w2waW5Zoa/Wc4Yqe0wgrIYAGKqRMf7czn2HNKXmuL+I=
 github.com/pkg/errors v0.8.0 h1:WdK/asTD0HN+q6hsWO3/vpuAkAr+tw6aNJNDFFf0+qw=

rootio/compress_test.go

@@ -54,7 +54,6 @@ void testcompress(const char *fname, int size) {
 		{name: "default", opt: func(*File) error { return nil }},
 		{name: "default-nil", opt: nil},
 		{name: "no-compr", opt: WithoutCompression()},
-		{name: "default-nil", opt: nil},
 		{name: "lz4-default", opt: WithLZ4(flate.DefaultCompression)},
 		{name: "lz4-0", opt: WithLZ4(0)},
 		{name: "lz4-1", opt: WithLZ4(1)},