Revert "session: do not delete on flush"

This reverts commit b654a56.

Author: williamcroberts

lib/tpm2_session.c

@@ -361,8 +361,14 @@ tool_rc tpm2_session_close(tpm2_session **s) {
     }
 
     if ((*s)->internal.delete && path) {
-        rc = tool_rc_success;
-        goto out2;
+        if (remove(path)) {
+            LOG_ERR("File \"%s\" can't be deleted.", path);
+            rc = tool_rc_general_error;
+            goto out2;
+        } else {
+            rc = tool_rc_success;
+            goto out2;
+        }
     }
 
     FILE *session_file = path ? fopen(path, "w+b") : NULL;

test/integration/tests/unseal.sh

@@ -156,4 +156,9 @@ tpm2 sessionconfig enc_session.ctx --enable-encrypt --disable-continuesession
 unsealed=`tpm2 unseal -c seal_key.ctx -p sealkeypass -S enc_session.ctx`
 test "$unsealed" == "$secret"
 
+if [ -e enc_session.ctx ]; then
+    echo "enc_session.ctx was not deleted.";
+    exit 1
+fi
+
 exit 0