TEP-0075: Remove log statement

Ran into this log statement when running tests - it was introduced
in #5007 when debugging
TEP-0075 I believe. This change is cleaning up the log statement.

pkg/reconciler/pipelinerun/resources/apply.go

@@ -19,7 +19,6 @@ package resources
 import (
 	"context"
 	"fmt"
-	"log"
 	"strconv"
 	"strings"
 
@@ -171,7 +170,6 @@ func ApplyReplacements(ctx context.Context, p *v1beta1.PipelineSpec, replacement
 		for j := range p.Tasks[i].Workspaces {
 			p.Tasks[i].Workspaces[j].SubPath = substitution.ApplyReplacements(p.Tasks[i].Workspaces[j].SubPath, replacements)
 		}
-		log.Println("chuangw", arrayReplacements)
 		p.Tasks[i].WhenExpressions = p.Tasks[i].WhenExpressions.ReplaceWhenExpressionsVariables(replacements, arrayReplacements)
 		p.Tasks[i], replacements, arrayReplacements, objectReplacements = propagateParams(ctx, p.Tasks[i], replacements, arrayReplacements, objectReplacements)
 	}