Tweak based on official DIAMOND test-data

conf/test.config

@@ -35,10 +35,6 @@ params {
     run_metaphlan3                        = true
     run_centrifuge                        = true
     run_diamond                           = true
-    // TODO: setting to txt here as does not require taxonomy in database.
-    // Should consider re-building our test database but with the required
-    // taxonomy files, but this may make large files (prot2access: 9GB)
-    diamond_output_format                 = 'txt'
 }
 
 process {

nextflow.config

@@ -111,7 +111,7 @@ params {
 
     // diamond
     run_diamond                = false
-    diamond_output_format      = 'tsv'
+    diamond_output_format      = 'txt'
 }
 
 // Load base.config by default for all pipelines