Revert "Clicking a link in the HTML reporter does exact filtering"

This change broke spec filtering in Karma by changing the format of the
`spec` query parameter. Although karma-jasmine-html-reporter uses
jasmine-core's HtmlSpecFilter, karm-jasmine provides its own spec filter
that interprets the query parameters itself.

This feature may be reintroduced in 6.0 as a breaking change.

This reverts commit 8309416cb2.

src/html/requireHtml.js

@@ -6,5 +6,4 @@ jasmineRequire.html = function(j$) {
   j$.HtmlReporter = jasmineRequire.HtmlReporter(j$);
   j$.QueryString = jasmineRequire.QueryString();
   j$.HtmlSpecFilter = jasmineRequire.HtmlSpecFilter();
-  j$.HtmlExactSpecFilter = jasmineRequire.HtmlExactSpecFilter();
 };