Remove unused DSL1 warning (#3671)

Signed-off-by: Ben Sherman <[email protected]>

Author: bentsherman

modules/nextflow/src/main/groovy/nextflow/script/BaseScript.groovy

@@ -174,22 +174,6 @@ abstract class BaseScript extends Script implements ExecutionContext {
         if( !entryFlow ) {
             if( meta.getLocalWorkflowNames() )
                 throw new AbortOperationException("No entry workflow specified")
-            if( meta.getLocalProcessNames() ) {
-                final msg = """\
-                        =============================================================================
-                        =                                WARNING                                    =
-                        = You are running this script using DSL2 syntax, however it does not        = 
-                        = contain any 'workflow' definition so there's nothing for Nextflow to run. =
-                        =                                                                           =
-                        = If this script was written using Nextflow DSL1 syntax, please add the     = 
-                        = setting 'nextflow.enable.dsl=1' to the nextflow.config file or use the    =
-                        = command-line option '-dsl1' when running the pipeline.                    =
-                        =                                                                           =
-                        = More details at this link: https://www.nextflow.io/docs/latest/dsl2.html  =
-                        =============================================================================
-                        """.stripIndent(true)
-                throw new AbortOperationException(msg)
-            }
             return result
         }