remove node 13 tests (open-telemetry#1132)

Co-authored-by: Daniel Dyla <[email protected]>

Author: shivkanya9146

.circleci/config.yml

@@ -161,11 +161,6 @@ jobs:
       - image: node:12
         environment: *node_test_env
     <<: *node_unit_tests
-  node13:
-    docker:
-      - image: node:13
-        environment: *node_test_env
-    <<: *node_unit_tests
   node14:
     docker:
       - image: node:14
@@ -187,7 +182,6 @@ workflows:
       - node8
       - node10
       - node12
-      - node13
       - node14
       - node12-browsers
 

README.md

@@ -59,7 +59,6 @@ If you are a library author looking to build OpenTelemetry into your library, pl
 | Platform Version | Supported                                       |
 |------------------|-------------------------------------------------|
 | Node.JS `v14`    | ✅                                               |
-| Node.JS `v13`    | ✅                                               |
 | Node.JS `v12`    | ✅                                               |
 | Node.JS `v10`    | ✅                                               |
 | Node.JS `v8`     | See [Node Support](#node-support) below         |