Convert EchoContextBinder to MaD

go/ql/lib/ext/github.com.labstack.echo.model.yml

@@ -10,6 +10,7 @@ extensions:
       pack: codeql/go-all
       extensible: sourceModel
     data:
+      - ["github.com/labstack/echo", "Context", True, "Bind", "", "", "Argument[0]", "remote", "manual"]
       - ["github.com/labstack/echo", "Context", True, "Param", "", "", "ReturnValue[0]", "remote", "manual"]
       - ["github.com/labstack/echo", "Context", True, "ParamValues", "", "", "ReturnValue[0]", "remote", "manual"]
       - ["github.com/labstack/echo", "Context", True, "QueryParam", "", "", "ReturnValue[0]", "remote", "manual"]

go/ql/lib/semmle/go/frameworks/Echo.qll

@@ -22,19 +22,6 @@ private module Echo {
     }
   }
 
-  /**
-   * A call to a method on `Context` struct that unmarshals data into a target.
-   */
-  private class EchoContextBinder extends RemoteFlowSource::Range {
-    EchoContextBinder() {
-      exists(DataFlow::MethodCallNode call |
-        call.getTarget().hasQualifiedName(packagePath(), "Context", "Bind")
-      |
-        this = FunctionOutput::parameter(0).getExitNode(call)
-      )
-    }
-  }
-
   /**
    * `echo.Context` methods which set the content-type to `text/html` and write a result in one operation.
    */