iOS, cleaned unused parameter

Change-Id: Iac097d9a4578ef7dcb47006a422703ab06a8284e

include/LibreOfficeKit/LibreOfficeKitInit.h

@@ -234,6 +234,7 @@ static void *lok_dlopen( const char *install_path, char ** _imp_lib )
         }
     }
 #else
+    (void)install_path;
     imp_lib = strdup("the app executable");
     dlhandle = RTLD_MAIN_ONLY;
 #endif