Remove Alpine tweak for building Rust SDK

Author: yogh333

full/Dockerfile

@@ -35,6 +35,3 @@ RUN cargo +$RUST_STABLE install --version 1.7.0 cargo-ledger
 
 # Setup cargo ledger (install JSON target files and custom link script) for nightly
 RUN cargo ledger setup
-
-# Add a global Cargo config file (includes mandatory unstable features used to build our apps) 
-ADD ./full/cargo_global_config.toml $CARGO_HOME/config.toml