Cleanup Makefile.am for libsecp256k1
Cleanup Makefile.am for libsecp256k1

upgradeadvice/MUE-Src,upgradeadvice/MUE-Src,MonetaryUnit/MUE-Src,upgradeadvice/MUE-Src,MonetaryUnit/MUE-Src,MonetaryUnit/MUE-Src,upgradeadvice/MUE-Src,MonetaryUnit/MUE-Src,upgradeadvice/MUE-Src,MonetaryUnit/MUE-Src,upgradeadvice/MUE-Src,MonetaryUnit/MUE-Src