Remove unused variables

.env.example

@@ -299,27 +299,6 @@ DKR_BUILD_LOCALE=false
 # Won't significantly speed up things.
 DKR_CHECK_SQLITE=true
 
-# Run database creation and migration commands. Disable this only if you're 100% sure the DB exists
-# and is up to date.
-DKR_RUN_MIGRATION=true
-
-# Run database upgrade commands. Disable this only when you're 100% sure your DB is up-to-date
-# with the latest fixes (outside of migrations!)
-DKR_RUN_UPGRADE=true
-
-# Verify database integrity. Includes all data checks and verifications.
-# Disabling this makes Firefly III assume your DB is intact.
-DKR_RUN_VERIFY=true
-
-# Run database reporting commands. When disabled, Firefly III won't go over your data to report current state.
-# Disabling this should have no impact on data integrity or safety but it won't warn you of possible issues.
-DKR_RUN_REPORT=true
-
-# Generate OAuth2 keys.
-# When disabled, Firefly III won't attempt to generate OAuth2 Passport keys. This won't be an issue, IFF (if and only if)
-# you had previously generated keys already and they're stored in your database for restoration.
-DKR_RUN_PASSPORT_INSTALL=true
-
 # Leave the following configuration vars as is.
 # Unless you like to tinker and know what you're doing.
 APP_NAME=FireflyIII