MINOR: remove redundancy in AddCustomRoute function logic

Refactors the `AddCustomRoute` function to eliminate redundancy introduced in commit c28d620.
The updated code removes repetition without add extra spaces.

Author: fabianonunes

pkg/route/route.go

@@ -109,17 +109,9 @@ func AddCustomRoute(route Route, routeACLAnn string, api api.HAProxyClient) (err
 	}
 	if route.Path.Path != "" {
 		if route.Path.PathTypeMatch == store.PATH_TYPE_EXACT {
-			if routeCond == "" {
-				routeCond = fmt.Sprintf("{ path %s }", route.Path.Path)
-			} else {
-				routeCond = fmt.Sprintf("%s { path %s }", routeCond, route.Path.Path)
-			}
+			routeCond = fmt.Sprintf("%s{ path %s }", routeCond, route.Path.Path)
 		} else {
-			if routeCond == "" {
-				routeCond = fmt.Sprintf("{ path -m beg %s }", route.Path.Path)
-			} else {
-				routeCond = fmt.Sprintf("%s { path -m beg %s }", routeCond, route.Path.Path)
-			}
+			routeCond = fmt.Sprintf("%s{ path -m beg %s }", routeCond, route.Path.Path)
 		}
 	}
 	routeCond = fmt.Sprintf("%s { %s } ", routeCond, routeACLAnn)