remove nightly configuration

Author: baileympearson

.evergreen/config.in.yml

@@ -13,11 +13,6 @@ command_type: system
 # That roughly accounts for variable system performance for various buildvariants
 exec_timeout_secs: 2100
 
-patch_aliases:
-  - alias: "nightly"
-    variant_tags: ["nightly"]
-    task_tags: [".*"]
-
 # What to do when evergreen hits the timeout (`post:` tasks are run automatically)
 timeout:
   - command: subprocess.exec

.evergreen/config.yml

@@ -1,12 +1,6 @@
 stepback: true
 command_type: system
 exec_timeout_secs: 2100
-patch_aliases:
-  - alias: nightly
-    variant_tags:
-      - nightly
-    task_tags:
-      - .*
 timeout:
   - command: subprocess.exec
     params:
@@ -5197,8 +5191,3 @@ buildvariants:
     run_on: rhel80-large
     tasks:
       - test_atlas_task_group_search_indexes
-  - name: nightly
-    display_name: Nightly Build
-    run_on: rhel80-large
-    tasks:
-      - .nightly

.evergreen/generate_evergreen_tasks.js

@@ -579,31 +579,6 @@ BUILD_VARIANTS.push({
   tasks: ['test-atlas-data-lake']
 });
 
-const NIGHTLY_TASKS = [
-  {
-    name: `run-custom-csfle-tests-with-libmongocrypt-latest`,
-    tags: ['run-custom-dependency-tests', 'nightly'],
-    commands: [
-      updateExpansions({
-        NODE_LTS_VERSION: LOWEST_LTS,
-        NPM_VERSION: 9,
-        VERSION: '8.0',
-        TOPOLOGY: 'replica_set',
-      }),
-      { func: 'install dependencies' },
-      { func: 'bootstrap mongo-orchestration' },
-      { func: 'bootstrap kms servers' },
-      {
-        func: 'install mongodb-client-encryption',
-        vars: {
-          'LIBMONGOCRYPT_VERSION': 'latest'
-        }
-      },
-      { func: 'run custom csfle tests' }
-    ]
-  }
-];
-
 const customDependencyTests = [];
 
 for (const version of ['5.0', 'rapid', 'latest']) {
@@ -756,13 +731,6 @@ BUILD_VARIANTS.push({
   tasks: ['test_atlas_task_group_search_indexes']
 });
 
-BUILD_VARIANTS.push({
-  name: 'nightly',
-  display_name: 'Nightly Build',
-  run_on: DEFAULT_OS,
-  tasks: ['.nightly']
-})
-
 // TODO(NODE-4575): unskip zstd and snappy on node 16
 for (const variant of BUILD_VARIANTS.filter(
   variant => variant.expansions && [16, 18, 20].includes(variant.expansions.NODE_LTS_VERSION)