chore(search,textfield): displayLabel arg is undefined (#3660)

* chore: update textfield template arg
- sets displayLabel as undefined in textfield default args. Before, with
displayLabel set to true by default, components such as combobox,
search, stepper, had duplicate field label components and offset a bunch
of the icons & buttons within those components. With the displayLabel 
undefined in the default args, any nested textfields in other components
will not render the field label that is embedded within the textfield.

* chore(search): removes displayLabel arg from nested textfield

Author: marissahuysentruyt

components/search/stories/template.js

@@ -45,7 +45,6 @@ export const Template = ({
 			setName: "workflow",
 			type: "search",
 			placeholder: "Search",
-			displayLabel: false,
 			name: "search",
 			customInputClasses: [`${rootClass}-input`],
 			customIconClasses: [`${rootClass}-icon`],

components/textfield/stories/template.js

@@ -70,7 +70,7 @@ export const Template = ({
 	isReadOnly = false,
 	isKeyboardFocused = false,
 	isLoading = false,
-	displayLabel = true,
+	displayLabel,
 	labelPosition = "top",
 	labelText,
 	characterCount,