fix unused parameter warnings

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: Ic045f61b3657f1a21afd82b9975619a8fb440863
diff --git a/bmc-vmi-ca/mainapp.cpp b/bmc-vmi-ca/mainapp.cpp
index 28b05bc..4c6ef1e 100644
--- a/bmc-vmi-ca/mainapp.cpp
+++ b/bmc-vmi-ca/mainapp.cpp
@@ -5,7 +5,7 @@
 #include <sdeventplus/event.hpp>
 #include <string>
 
-int main(int argc, char** argv)
+int main()
 {
     auto bus = sdbusplus::bus::new_default();
     static constexpr auto objPath = "/xyz/openbmc_project/certs/ca";