diff --git a/source/logic/checks/file_timestamp.py b/source/logic/checks/file_timestamp.py
deleted file mode 100644
index 8eb4a8b..0000000
--- a/source/logic/checks/file_timestamp.py
+++ /dev/null
@@ -1,114 +0,0 @@
-class implementation_check_kind_file_timestamp(interface_check_kind):
-
-	'''
-	[implementation]
-	'''
-	def parameters_schema(self):
-		return {
-			"type": "object",
-			"additionalProperties": False,
-			"properties": {
-				"path": {
-					"type": "string"
-				},
-				"warning_age": {
-					"type": "integer",
-					"exclusiveMinimum": 0,
-					"default": (60 * 60)
-				},
-				"critical_age": {
-					"type": "integer",
-					"exclusiveMinimum": 0,
-					"default": (60 * 60 * 24)
-				},
-				"condition_on_missing": {
-					"description": "which condition to report if file is missing",
-					"type": "string",
-					"enum": [
-						"unknown",
-						"ok",
-						"warning",
-						"critical"
-					],
-					"default": "warning"
-				},
-				"condition_on_implausible": {
-					"description": "which condition to report if the age is negative, i.e. the file is apparently from the future",
-					"type": "string",
-					"enum": [
-						"unknown",
-						"ok",
-						"warning",
-						"critical"
-					],
-					"default": "warning"
-				}
-			},
-			"required": [
-				"path"
-			]
-		}
-		
-	
-	'''
-	[implementation]
-	'''
-	def normalize_conf_node(self, node):
-		if ("path" not in node):
-			raise ValueError("missing mandatory field 'path'")
-		else:
-			return dict_merge(
-				{
-					"warning_age": (60 * 60),
-					"critical_age": (60 * 60 * 24),
-					"condition_on_missing": condition_encode(enum_condition.warning),
-					"condition_on_implausible": condition_encode(enum_condition.warning),
-				},
-				node
-			)
-		
-	
-	'''
-	[implementation]
-	'''
-	def run(self, parameters):
-		if (not _os.path.exists(parameters["path"])):
-			return {
-				"condition": condition_decode(parameters["condition_on_missing"]),
-				"info": {
-					"path": parameters["path"],
-					"flaw": translation_get("checks.file_timetsamp.missing"),
-				}
-			}
-		else:
-			result = _os.stat(parameters["path"])
-			timestamp = get_current_timestamp()
-			age = (timestamp - result.st_atime)
-			if (age < 0):
-				return {
-					"condition": condition_decode(parameters["condition_on_implausible"]),
-					"info": {
-						"path": parameters["path"],
-						"flaw": translation_get("checks.file_timetsamp.implausible"),
-						"timestamp_of_checking_instance": timestamp,
-						"timestamp_of_file": result.st_atime,
-					},
-				}
-			else:
-				if ((age > 0) and (age <= parameters["warning_age"])):
-					condition = enum_condition.ok
-				elif ((age > parameters["warning_age"]) and (age <= parameters["critical_age"])):
-					condition = enum_condition.warning
-				elif (age > parameters["critical_age"]):
-					condition = enum_condition.critical
-				else:
-					raise ValueError("impossible")
-				return {
-					"condition": condition,
-					"info": {
-						"path": parameters["path"],
-						"flaw": translation_get("checks.file_timetsamp.too_old"),
-						"age_in_seconds": ("%u" % age),
-					},
-				}
-