[davidw]

If you are referring to the search.php usage, nothing will be done there (or seen) unless you put in the $google_siteadsearch - all it will be is a template. However, if you want to remove it all, just find this:

		<template name="google_siteadsearch" templatetype="template" username="davidw" version="1.2"><![CDATA[<table class="tborder" cellpadding="$stylevar[cellpadding]" cellspacing="$stylevar[cellspacing]" border="0" width="100%" align="center">
	<tr>
		<form method="get" action="{$vboptions['google_forum_path']}" target="_top"><td class="tcat">Search Google / Search Forums Using Google</td>
	</tr>
	<tr>
		<td class="panelsurround" align="center" title="nohilite">
			<table class="panel" border="0" width="100%" align="center">
				<tr>
					<td nowrap="nowrap" align="center" valign="top">
						<input type="hidden" name="domains" value="{$vboptions['homeurl']}"></input>
						<input type="text" name="q" size="31" maxlength="255" value=""></input>
						<input type="submit" name="sa" value="Go"></input>
					</td>
				</tr>
				<tr>
					<td nowrap="nowrap" align="center" valign="top">
						<table border="0">
							<tr>
								<td>
									<input type="radio" name="sitesearch" value="" id="ss0"></input>
									<label for="ss0" title="Search the Web">{$vboptions['google_label_web']}</label>
								</td>
								<td>
									<input type="radio" name="sitesearch" value="{$vboptions['homeurl']}" checked id="ss1"></input>
									<label for="ss1" title="Search {$vboptions['homeurl']}">{$vboptions['google_label_site']}</label>
								</td>
							</tr>
						</table>
						<input type="hidden" name="client" value="{$vboptions['google_pub']}"></input>
						<input type="hidden" name="forid" value="1"></input>
						<input type="hidden" name="ie" value="ISO-8859-1"></input>
						<input type="hidden" name="oe" value="ISO-8859-1"></input>
						<input type="hidden" name="cof" value="{$vboptions['google_cof']}"></input>
						<input type="hidden" name="hl" value="en"></input>
					</td>
				</tr>
			</table>
		</td></form>
	</tr>
</table>]]></template>

and this

		<plugin active="1" executionorder="5">
			<title><![CDATA[vB Google Search - Search.php]]></title>
			<hookname>global_start</hookname>
			<phpcode><![CDATA[global $db, $vbulletin;
eval('$google_siteadsearch .= "' . fetch_template('google_siteadsearch') . '";');]]></phpcode>
		</plugin>

and remove both of those.

Btw, don't forget to click install