diff --git a/first-network/byfn.sh b/first-network/byfn.sh
index 8771ba540b..08ad46c2de 100755
--- a/first-network/byfn.sh
+++ b/first-network/byfn.sh
@@ -480,9 +480,6 @@ function generateChannelArtifacts() {
   echo
 }
 
-# Obtain the OS and Architecture string that will be used to select the correct
-# native binaries for your platform, e.g., darwin-amd64 or linux-amd64
-OS_ARCH=$(echo "$(uname -s | tr '[:upper:]' '[:lower:]' | sed 's/mingw64_nt.*/windows/')-$(uname -m | sed 's/x86_64/amd64/g')" | awk '{print tolower($0)}')
 # timeout duration - the duration the CLI should wait for a response from
 # another container before giving up
 CLI_TIMEOUT=10
diff --git a/first-network/eyfn.sh b/first-network/eyfn.sh
index 490ece5ffc..5ce4a219f1 100755
--- a/first-network/eyfn.sh
+++ b/first-network/eyfn.sh
@@ -218,9 +218,6 @@ if [ ! -d crypto-config ]; then
   exit 1
 fi
 
-# Obtain the OS and Architecture string that will be used to select the correct
-# native binaries for your platform
-OS_ARCH=$(echo "$(uname -s|tr '[:upper:]' '[:lower:]'|sed 's/mingw64_nt.*/windows/')-$(uname -m | sed 's/x86_64/amd64/g')" | awk '{print tolower($0)}')
 # timeout duration - the duration the CLI should wait for a response from
 # another container before giving up
 CLI_TIMEOUT=10
diff --git a/interest_rate_swaps/network/network.sh b/interest_rate_swaps/network/network.sh
index 5338ecf045..999194b176 100755
--- a/interest_rate_swaps/network/network.sh
+++ b/interest_rate_swaps/network/network.sh
@@ -184,9 +184,6 @@ function generateChannelArtifacts() {
   fi
 }
 
-# Obtain the OS and Architecture string that will be used to select the correct
-# native binaries for your platform, e.g., darwin-amd64 or linux-amd64
-OS_ARCH=$(echo "$(uname -s | tr '[:upper:]' '[:lower:]' | sed 's/mingw64_nt.*/windows/')-$(uname -m | sed 's/x86_64/amd64/g')" | awk '{print tolower($0)}')
 CHANNEL_NAME="irs"
 COMPOSE_FILE=docker-compose.yaml
 COMPOSE_PROJECT_NAME=fabric-irs