Merge JoinMarket-Org/joinmarket-clientserver#1657: Remove `--disable-jni` from `libsecp256k1_build`

8846c4da62 Remove --disable-jni from libsecp256k1_build (Kristaps Kaupe)

Pull request description:

  JNI was removed with libsecp256k1 v0.2.0, see https://github.com/bitcoin-core/secp256k1/pull/682.

Top commit has no ACKs.

Tree-SHA512: 4d0b67527e3d4530528beaaf54c926fc0848324be7051b22998d6d695c95b0de4b70e7483832068dc2abb9c3183b76d64c372a088958f6508b280c4cceee0840

install.sh

@@ -307,7 +307,6 @@ libsecp256k1_build()
     ./autogen.sh
     ./configure \
         --enable-module-recovery \
-        --disable-jni \
         --prefix "${jm_root}" \
         --enable-experimental \
         --enable-module-ecdh \