[TASK] Do not hard require typo3/cms-install (#543)

TF itself has no hard dependency to typo3/cms-install.

> composer rem typo3/cms-install

Author: lolli42

composer.json

@@ -33,8 +33,7 @@
     "typo3/cms-core": "12.*.*@dev || 13.*.*@dev",
     "typo3/cms-extbase": "12.*.*@dev || 13.*.*@dev",
     "typo3/cms-fluid": "12.*.*@dev || 13.*.*@dev",
-    "typo3/cms-frontend": "12.*.*@dev || 13.*.*@dev",
-    "typo3/cms-install": "12.*.*@dev || 13.*.*@dev"
+    "typo3/cms-frontend": "12.*.*@dev || 13.*.*@dev"
   },
   "config": {
     "vendor-dir": ".Build/vendor",