Revert "[PLAT-15112] Handle incomplete pexvenv generation"

Summary: This reverts commit dd860cd.

Test Plan: build break

Reviewers: nsingh

Reviewed By: nsingh

Subscribers: yugaware

Differential Revision: https://phorge.dev.yugabyte.com/D38682

managed/devops/bin/common.sh

@@ -589,20 +589,9 @@ activate_pex() {
       log "detected python version mismatch between pex venv and ${PYTHON_EXECUTABLE}. Deleting pex venv to regenerate"
       rm -rf "$pex_venv_dir"
     fi
-    if [[ ! -e $pex_marker && -d $PEX_PATH ]]; then
-      rm -rf "$pex_venv_dir"
+    if [[ ! -d $pex_venv_dir && -d $PEX_PATH ]]; then
       deactivate_virtualenv
-      export PEX_VERBOSE=3
       PEX_TOOLS=1 $PYTHON_EXECUTABLE $PEX_PATH venv $pex_venv_dir
-      unset PEX_VERBOSE
-    fi
-    $VENV_PY -c "import ybops"
-    if [[ $? -eq 0 ]]; then
-      touch $pex_marker
-    else
-      log "Error importing ybops in pex environment, pexvenv may need to be regenerated"
-      rm -rf "$pex_venv_dir"
-      exit 1
     fi
   ) 9>>"$pex_lock"
   set +e
@@ -642,5 +631,4 @@ log_dir=$HOME/logs
 
 readonly virtualenv_dir=$yb_devops_home/$YB_VIRTUALENV_BASENAME
 readonly pex_venv_dir=$yb_devops_home/$YB_PEXVENV_BASENAME
-readonly pex_marker="$pex_venv_dir/.pex_valid"
 readonly pex_lock="/tmp/pexlock"