Drop spurious .delete() calls from example code

...that had been added there accidentally in
27ceca1996 "Rework the Embind mapping of UNO
interfaces"

Change-Id: I390e4b694e95d665f7bc3d62b0f7ba2c887041bb
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/165796
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <stephan.bergmann@allotropia.de>

static/README.wasm.md

@@ -232,7 +232,6 @@ xSimpleText = new css.text.XSimpleText(xText.$query());
 xTextCursor = xSimpleText.createTextCursor();
 xTextRange = new css.text.XTextRange(xTextCursor.$query());
 xTextRange.setString("string here!");
-xSimpleText.delete(); xTextCursor.delete(); xTextRange.delete();
 xModel.delete(); xTextDocument.delete(); xText.delete(); xSimpleText.delete(); xTextCursor.delete(); xTextRange.delete();
 ```