Remove WebView.getLooper().

We want to rename the method WebView.getLooper() to
WebView.getWebViewLooper().
We have already added the method WebView.getWebViewLooper() so with this
CL we remove the method WebView.getLooper().

Bug: 74831609
Test: make
Change-Id: I2d3c8ddeae032aa27ae3eed30d952a06b0abe854
2 files changed