Clean up Makefile, tests and legacy code (#36638)

This simplifies the Makefile by removing the whole-file wrapping that
creates a tempdir introduced by
https://github.com/go-gitea/gitea/pull/11126. REPO_TEST_DIR is removed
as well.

Also clean up a lot of legacy code: unnecessary XSS test, incorrect test
env init, unused "_old_uid" hack, etc

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

tests/sqlite.ini.tmpl

@@ -1,17 +1,16 @@
+WORK_PATH = {{WORK_PATH}}
 APP_NAME = Gitea: Git with a cup of tea
 RUN_MODE = prod
 
 [database]
 DB_TYPE = sqlite3
-PATH    = tests/{{TEST_TYPE}}/gitea-{{TEST_TYPE}}-sqlite/gitea.db
+PATH    = gitea.db
 
 [indexer]
 REPO_INDEXER_ENABLED = true
-REPO_INDEXER_PATH    = tests/{{TEST_TYPE}}/gitea-{{TEST_TYPE}}-sqlite/indexers/repos.bleve
 
 [queue.issue_indexer]
 TYPE = level
-DATADIR = tests/{{TEST_TYPE}}/gitea-{{TEST_TYPE}}-sqlite/indexers/issues.queue
 
 [queue]
 TYPE = immediate
@@ -25,15 +24,6 @@ TYPE = immediate
 [queue.webhook_sender]
 TYPE = immediate
 
-[repository]
-ROOT = {{REPO_TEST_DIR}}tests/{{TEST_TYPE}}/gitea-{{TEST_TYPE}}-sqlite/gitea-repositories
-
-[repository.local]
-LOCAL_COPY_PATH = tests/{{TEST_TYPE}}/gitea-{{TEST_TYPE}}-sqlite/tmp/local-repo
-
-[repository.upload]
-TEMP_PATH = tests/{{TEST_TYPE}}/gitea-{{TEST_TYPE}}-sqlite/tmp/uploads
-
 [repository.signing]
 SIGNING_KEY = none
 
@@ -49,18 +39,14 @@ START_SSH_SERVER = true
 LFS_START_SERVER = true
 OFFLINE_MODE     = false
 LFS_JWT_SECRET   = Tv_MjmZuHqpIY6GFl12ebgkRAMt4RlWt0v4EHKSXO0w
-APP_DATA_PATH    = tests/{{TEST_TYPE}}/gitea-{{TEST_TYPE}}-sqlite/data
 ENABLE_GZIP      = true
 BUILTIN_SSH_SERVER_USER = git
 SSH_TRUSTED_USER_CA_KEYS = ssh-rsa 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
 
-[attachment]
-PATH = tests/{{TEST_TYPE}}/gitea-{{TEST_TYPE}}-sqlite/data/attachments
-
 [mailer]
 ENABLED     = true
 PROTOCOL = dummy
-FROM        = sqlite-{{TEST_TYPE}}-test@gitea.io
+FROM        = sqlite-integration-test@gitea.io
 
 [service]
 REGISTER_EMAIL_CONFIRM            = false
@@ -76,16 +62,12 @@ NO_REPLY_ADDRESS                  = noreply.example.org
 [picture]
 DISABLE_GRAVATAR              = false
 ENABLE_FEDERATED_AVATAR       = false
-AVATAR_UPLOAD_PATH            = tests/{{TEST_TYPE}}/gitea-{{TEST_TYPE}}-sqlite/data/avatars
-REPOSITORY_AVATAR_UPLOAD_PATH = tests/{{TEST_TYPE}}/gitea-{{TEST_TYPE}}-sqlite/data/repo-avatars
 
 [session]
 PROVIDER = file
-PROVIDER_CONFIG = tests/{{TEST_TYPE}}/gitea-{{TEST_TYPE}}-sqlite/data/sessions
 
 [log]
 MODE                 = {{TEST_LOGGER}}
-ROOT_PATH            = {{REPO_TEST_DIR}}sqlite-log
 ENABLE_SSH_LOG       = true
 logger.xorm.MODE     = file
 
@@ -105,9 +87,6 @@ DISABLE_QUERY_AUTH_TOKEN = true
 [oauth2]
 JWT_SECRET = KZb_QLUd4fYVyxetjxC4eZkrBgWM2SndOOWDNtgUUko
 
-[lfs]
-PATH = tests/{{TEST_TYPE}}/gitea-{{TEST_TYPE}}-sqlite/data/lfs
-
 [packages]
 ENABLED = true