Revert 187103 "Fix ignored taps in contextual search on Android"

LayoutTests/fast/forms/setrangetext-out-of-range.html

-<!DOCTYPE html>
-<script src="../../resources/js-test.js"></script>
-<script>
-    description("This tests the selection of the text field when mouse event occurs out of range");
-    jsTestIsAsync = true;
-    window.onload = function() {
-        runTest(); 
-    }
-    function runTest() {
-        var textfield = document.getElementById('textfield');
-        textfield.addEventListener('focus', setSelectionRange);
-        textfield.setSelectionRange(0, 1);
-
-        if (window.eventSender) {
-            eventSender.mouseMoveTo(textfield.offsetLeft + textfield.offsetWidth - 4, textfield.offsetTop + 4);
-            eventSender.mouseDown();
-            eventSender.mouseUp();
-            shouldBeZero('textfield.selectionStart');
-            shouldBe('textfield.selectionEnd', '5');
-
-            eventSender.mouseMoveTo(textfield.offsetLeft + textfield.offsetWidth - 4, textfield.offsetTop + 4);
-            eventSender.mouseDown();
-            eventSender.mouseUp();
-            debug('\nthe selection should be cleared'); 
-            shouldBeNonZero('textfield.selectionStart');
-            shouldBeNonZero('textfield.selectionEnd');
-        }
-        finishJSTest();
-    }
- 
-    function setSelectionRange(e) {
-        var textfield = document.getElementById('textfield');
-        textfield.setSelectionRange(0, 5);
-    }
-</script>
-<input type="text" value="This text field is for the selection test" id="textfield"></input>