pscanrules: Removed duplicate sentence from docs.

Signed-off-by: David Hall <[email protected]>

Author: David Hall

addOns/pscanrules/src/main/javahelp/org/zaproxy/zap/extension/pscanrules/resources/help/contents/pscanrules.html

@@ -96,9 +96,6 @@ <H2>Content Security Policy (CSP) Header Not Set</H2>
 <p>
 At the Low threshold, an INFO alert is raised if an "X-Content-Security-Policy" or "X-WebKit-CSP" header is found.  This may represent an outdated enforcement implementation.
 <p>
-If a "Content-Security-Policy-Report-Only" header is found on a response an INFO alert is raised. This may represent an enforcement effort 
-that is actively being refined or developed, or one which is only partially implemented.
-
 If a "Content-Security-Policy-Report-Only" header is found on a response an INFO alert is raised. This may represent an enforcement effort 
 that is actively being refined or developed, or one which is only partially implemented.
 <p>