Remove fake surbl symbols from metric

conf/metrics.conf

@@ -862,33 +862,18 @@ metric {
 	    name = "RAMBLER_URIBL";
 	}
 
-	symbol {
-	    weight = 0.0;
-	    name = "SEM_URIBL_UNKNOWN";
-	    description = "Spameatingmonkey uribl unknown";
-	}
 	symbol {
 	    weight = 3.5;
 	    name = "SEM_URIBL";
 	    description = "Spameatingmonkey uribl";
 	}
 
-	symbol {
-	    weight = 0.0;
-	    name = "SEM_URIBL_FRESH15_UNKNOWN";
-	    description = "Spameatingmonkey uribl unknown";
-	}
 	symbol {
 	    weight = 3.0;
 	    name = "SEM_URIBL_FRESH15";
 	    description = "Spameatingmonkey uribl. Domains registered in the last 15 days (.AERO,.BIZ,.COM,.INFO,.NAME,.NET,.PRO,.SK,.TEL,.US)";
 	}
 
-	symbol {
-	    weight = 0;
-	    description = "DBL uribl unknown symbol (error)";
-	    name = "DBL";
-	}
 	symbol {
 	    weight = 6.5;
 	    description = "DBL uribl spam";