HW2 Decorator Lab: Fixed HTML parser bug in AirportScraper.java

I know that we're not supposed to change AirportScraper.java for HW 2, but it looks like the HTML on the weather data site (http://www.world-airport-codes.com) has changed in such a way that breaks the parser. My change below fixes that. It's really just removing a nonexistent ```<b> ... </b>``` tag from the parser, so nothing major.

Would it be ok to merge this in so everyone can use it on the assignment?

Thanks,

Walter