remove redundant secp256k1 build from Linux scripts Coinlib builds its own secp256k1 via cmake ExternalProject during flutter build linux --release. The output of build_secp256k1.sh at build/libsecp256k1.so has no consumer in the Linux Flutter build pipeline.

Author: danrmiller

scripts/linux/build_all.sh

@@ -26,7 +26,5 @@ if [[ "$APP" = "stack_wallet" || "$APP" = "stack_duo" ]]; then
     (cd ../../crypto_plugins/frostdart/scripts/linux && ./build_all.sh )
 fi
 
-./build_secp256k1.sh
-
 wait
 echo "Done building"

scripts/linux/download_all.sh

@@ -16,7 +16,5 @@ if [[ "$APP" = "stack_wallet" || "$APP" = "stack_duo" ]]; then
     (cd ../../crypto_plugins/frostdart/scripts/linux && ./download.sh)
 fi
 
-./build_secp256k1.sh
-
 wait
 echo "Done"