removed unused node_modules caching in CI (#4724)

Co-authored-by: Caleb Cartwright <calebcartwright@users.noreply.github.com>

.circleci/config.yml

@@ -4,12 +4,6 @@ main_steps: &main_steps
   steps:
     - checkout
 
-    - restore_cache:
-        keys:
-          - v2-dependencies-{{ checksum "package-lock.json" }}
-          # https://github.com/badges/shields/issues/1937
-          - v2-dependencies-
-
     - run:
         name: Install dependencies
         command: npm ci
@@ -18,11 +12,6 @@ main_steps: &main_steps
           # We don't need to install the Cypress binary in jobs that aren't actually running Cypress.
           CYPRESS_INSTALL_BINARY: 0
 
-    - save_cache:
-        paths:
-          - node_modules
-        key: v2-dependencies-{{ checksum "package-lock.json" }}
-
     - run:
         name: Linter
         when: always
@@ -56,12 +45,6 @@ integration_steps: &integration_steps
   steps:
     - checkout
 
-    - restore_cache:
-        keys:
-          - v2-dependencies-{{ checksum "package-lock.json" }}
-          # https://github.com/badges/shields/issues/1937
-          - v2-dependencies-
-
     - run:
         name: Install dependencies
         command: npm ci
@@ -83,12 +66,6 @@ services_steps: &services_steps
   steps:
     - checkout
 
-    - restore_cache:
-        keys:
-          - v2-dependencies-{{ checksum "package-lock.json" }}
-          # https://github.com/badges/shields/issues/1937
-          - v2-dependencies-
-
     - run:
         name: Install dependencies
         command: npm ci
@@ -125,12 +102,6 @@ package_steps: &package_steps
   steps:
     - checkout
 
-    - restore_cache:
-        keys:
-          - v2-dependencies-{{ checksum "package-lock.json" }}
-          # https://github.com/badges/shields/issues/1937
-          - v2-dependencies-
-
     - run:
         name: Install dependencies
         command: |
@@ -181,23 +152,12 @@ jobs:
     steps:
       - checkout
 
-      - restore_cache:
-          keys:
-            - v2-dependencies-{{ checksum "package-lock.json" }}
-            # fallback to using the latest cache if no exact match is found
-            - v2-dependencies-
-
       - run:
           name: Install dependencies
           command: npm ci
           environment:
             CYPRESS_INSTALL_BINARY: 0
 
-      - save_cache:
-          paths:
-            - node_modules
-          key: v2-dependencies-{{ checksum "package-lock.json" }}
-
   main:
     docker:
       - image: circleci/node:8
@@ -230,12 +190,6 @@ jobs:
     steps:
       - checkout
 
-      - restore_cache:
-          keys:
-            - v2-dependencies-{{ checksum "package-lock.json" }}
-            # https://github.com/badges/shields/issues/1937
-            - v2-dependencies-
-
       - run:
           name: Install dependencies
           command: npm ci
@@ -256,12 +210,6 @@ jobs:
     steps:
       - checkout
 
-      - restore_cache:
-          keys:
-            - v2-dependencies-{{ checksum "package-lock.json" }}
-            # https://github.com/badges/shields/issues/1937
-            - v2-dependencies-
-
       - run:
           name: Install dependencies
           command: npm ci
@@ -315,13 +263,6 @@ jobs:
     steps:
       - checkout
 
-      - restore_cache:
-          name: Restore node_modules
-          keys:
-            - v2-dependencies-{{ checksum "package-lock.json" }}
-            # https://github.com/badges/shields/issues/1937
-            - v2-dependencies-
-
       - restore_cache:
           name: Restore Cypress binary
           keys: