revert fle changes

Author: p

.evergreen/config.yml

@@ -475,10 +475,6 @@ tasks:
     commands:
       - func: "export FLE credentials"
       - func: "run tests"
-  - name: "test-fle-via-docker"
-    commands:
-      - func: "export FLE credentials"
-      - func: "run tests via docker"
   - name: "test-aws-auth"
     commands:
       - func: "export AWS auth credentials"
@@ -1300,7 +1296,7 @@ buildvariants:
       fle: fle
     display_name: "FLE: ${mongodb-version} ${ruby}"
     tasks:
-      - name: "test-fle-via-docker"
+      - name: "test-fle"
 
   - matrix_name: "fle-4.2"
     matrix_spec: