fix: Fixed travis failure

dependency: none
Signed-off-by: jkalanda <jkalanda@us.ibm.com>

Author: jkalandaibm

.travis.yml

@@ -28,7 +28,7 @@ before_install:
 - echo -e "machine github.ibm.com\n  login $GH_TOKEN" > ~/.netrc
 
 install:
-  - sudo rm /etc/apt/sources.list.d/mongodb-4.4.list
+  - sudo rm -f /etc/apt/sources.list.d/mongodb-4.4.list
   - wget -O- https://pgp.mongodb.com/server-4.4.asc | sudo gpg --dearmor -o /usr/share/keyrings/mongodb-4.4.gpg
   - echo "deb [signed-by=/usr/share/keyrings/mongodb-4.4.gpg] http://repo.mongodb.org/apt/ubuntu $(lsb_release -cs)/mongodb-org/4.4 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-4.4.list
   - pip install tox-travis