fixed forced resize

Author: rlogiacco

it.baeyens.arduino.core/src/it/baeyens/arduino/ui/PlatformPreferencePage.java

@@ -46,7 +46,6 @@ protected Control createContents(Composite parent) {
 
 	Text desc = new Text(control, SWT.READ_ONLY);
 	GridData layoutData = new GridData(SWT.FILL, SWT.FILL, true, false);
-	layoutData.widthHint = 500;
 	desc.setLayoutData(layoutData);
 	desc.setBackground(parent.getBackground());
 	desc.setText("remove or add checkboxes to update your configuration."); //$NON-NLS-1$