JS: drop "-kjsm" flag, merge logic with "-meta-info"

#KT-16049 Fixed

libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/K2JSCompilerMojo.java

@@ -58,17 +58,11 @@ public class K2JSCompilerMojo extends KotlinCompileMojoBase<K2JSCompilerArgument
     private String outputFile;
 
     /**
-     * Flag enables or disables metafile generation
+     * Flag enables or disables .meta.js and .kjsm files generation, used to create libraries
      */
     @Parameter(defaultValue = "true")
     private boolean metaInfo;
 
-    /**
-     * Flag enables or disables kjsm generation
-     */
-    @Parameter(defaultValue = "true")
-    private boolean kjsm;
-
     /**
      * Flags enables or disable source map generation
      */
@@ -95,7 +89,6 @@ public class K2JSCompilerMojo extends KotlinCompileMojoBase<K2JSCompilerArgument
         arguments.outputFile = outputFile;
         arguments.noStdlib = true;
         arguments.metaInfo = metaInfo;
-        arguments.kjsm = kjsm;
         arguments.moduleKind = moduleKind;
 
         List<String> libraries = null;