chore(ci): go back to consistently using v3 toolchain (#2054)

The v4 toolchain bump was not necessary and broke some of our
arm64 qemu integration tests due to increased hardware requirements.

Author: kmruiz

.evergreen/install-node-source.sh

@@ -7,17 +7,7 @@ EVGDIR="$ROOT_DIR/.evergreen"
 NVM_DIR="$EVGDIR/.nvm"
 ORIGINAL_PATH="${PATH}"
 
-OS_ARCH="$(uname "-m")"
-
-if [ "$OS_ARCH" = "aarch64" ] || [ "$OS_ARCH" = "arm64" ] ; then
-    echo "[INFO] Choosing v4 because OS_ARCH is $OS_ARCH"
-    export TOOLCHAIN_PATH='/opt/mongodbtoolchain/v4/bin'
-else
-    echo "[INFO] Choosing v3 because OS_ARCH is $OS_ARCH"
-    export TOOLCHAIN_PATH='/opt/mongodbtoolchain/v3/bin'
-fi
-
-export PATH="$TOOLCHAIN_PATH:/opt/mongodbtoolchain/v4/bin:/opt/mongodbtoolchain/v3/bin:${ORIGINAL_PATH}"
+export PATH="/opt/mongodbtoolchain/v4/bin:/opt/mongodbtoolchain/v3/bin:${ORIGINAL_PATH}"
 export CC=gcc
 export CXX=g++
 

.evergreen/setup-env.sh

@@ -1,18 +1,9 @@
 set -e
 set -x
 
-OS_ARCH="$(uname "-m")"
-
-if [ "$OS_ARCH" = "aarch64" ] || [ "$OS_ARCH" = "arm64" ] ; then
-    echo "[INFO] Choosing v4 because OS_ARCH is $OS_ARCH"
-    export TOOLCHAIN_PATH='/opt/mongodbtoolchain/v4/bin'
-else
-    echo "[INFO] Choosing v3 because OS_ARCH is $OS_ARCH"
-    export TOOLCHAIN_PATH='/opt/mongodbtoolchain/v3/bin'
-fi
-
 export BASEDIR="$PWD/.evergreen"
-export PATH="/cygdrive/c/python/Python311/Scripts:/cygdrive/c/python/Python311:/cygdrive/c/Python311/Scripts:/cygdrive/c/Python311:/opt/python/3.6/bin:$BASEDIR/mingit/cmd:$BASEDIR/mingit/mingw64/libexec/git-core:$BASEDIR/git-2:$BASEDIR/npm-10/node_modules/.bin:$BASEDIR/node-v$NODE_JS_VERSION-win-x64:/opt/java/jdk16/bin:/opt/chefdk/gitbin:/cygdrive/c/cmake/bin:$TOOLCHAIN_PATH:$PATH"
+export PATH="/cygdrive/c/python/Python311/Scripts:/cygdrive/c/python/Python311:/cygdrive/c/Python311/Scripts:/cygdrive/c/Python311:/opt/python/3.6/bin:$BASEDIR/mingit/cmd:$BASEDIR/mingit/mingw64/libexec/git-core:$BASEDIR/git-2:$BASEDIR/npm-10/node_modules/.bin:$BASEDIR/node-v$NODE_JS_VERSION-win-x64:/opt/java/jdk16/bin:/opt/chefdk/gitbin:/cygdrive/c/cmake/bin:/opt/mongodbtoolchain/v3/bin:$PATH"
+
 export IS_MONGOSH_EVERGREEN_CI=1
 export DEBUG="mongodb*,$DEBUG"