pkg/gadget-context: remove lazy operator initialization

Operator initialization should be handled by the caller that is also creating the
gadget context, not the gadget context itself. This removes the old code and relies
on initialization taking place somewhere else.

Signed-off-by: Michael Friese <mfriese@microsoft.com>

pkg/gadget-context/run.go

@@ -41,20 +41,11 @@ func (c *GadgetContext) initAndPrepareOperators(paramValues api.ParamValues) ([]
 		log.Debugf("initializing data op %q", op.Name())
 		opParamPrefix := fmt.Sprintf("operator.%s", op.Name())
 
-		// Lazily initialize operator
-		// TODO: global params should be filled out from a config file or such; maybe it's a better idea not to
-		// lazily initialize operators at all, but just hand over the config. The "lazy" stuff could then be done
-		// if the operator is instantiated and needs to do work
-		err := op.Init(apihelpers.ToParamDescs(op.GlobalParams()).ToParams())
-		if err != nil {
-			return nil, fmt.Errorf("initializing operator %q: %w", op.Name(), err)
-		}
-
 		// Get and fill params
 		instanceParams := op.InstanceParams().AddPrefix(opParamPrefix)
 		opParamValues := paramValues.ExtractPrefixedValues(opParamPrefix)
 
-		err = apihelpers.Validate(instanceParams, opParamValues)
+		err := apihelpers.Validate(instanceParams, opParamValues)
 		if err != nil {
 			return nil, fmt.Errorf("validating params for operator %q: %w", op.Name(), err)
 		}