Revert "ensures focus of input when InputControl spinner arrows are p…

…ressed (#25753)"

This reverts commit 4e7c772.

packages/components/src/input-control/input-field.js

@@ -39,7 +39,6 @@ function InputField(
 		setIsFocused,
 		stateReducer = ( state ) => state,
 		value: valueProp,
-		type,
 		...props
 	},
 	ref
@@ -102,19 +101,6 @@ function InputField(
 		}
 	};
 
-	/*
-	 * Works around the odd UA (e.g. Firefox) that does not focus inputs of
-	 * type=number when their spinner arrows are pressed.
-	 */
-	let handleOnMouseDown;
-	if ( type === 'number' ) {
-		handleOnMouseDown = ( event ) => {
-			if ( event.target !== event.target.ownerDocument.activeElement ) {
-				event.target.focus();
-			}
-		};
-	}
-
 	const handleOnFocus = ( event ) => {
 		onFocus( event );
 		setIsFocused( true );
@@ -205,11 +191,9 @@ function InputField(
 			onChange={ handleOnChange }
 			onFocus={ handleOnFocus }
 			onKeyDown={ handleOnKeyDown }
-			onMouseDown={ handleOnMouseDown }
 			ref={ ref }
 			size={ size }
 			value={ value }
-			type={ type }
 		/>
 	);
 }