diff --git a/ibis/backends/clickhouse/identifiers.py b/ibis/backends/clickhouse/identifiers.py
deleted file mode 100644
index fdf3b1865474..000000000000
--- a/ibis/backends/clickhouse/identifiers.py
+++ /dev/null
@@ -1,119 +0,0 @@
-from __future__ import annotations
-
-_identifiers = frozenset(
-    {
-        "add",
-        "aggregate",
-        "all",
-        "alter",
-        "and",
-        "as",
-        "asc",
-        "between",
-        "by",
-        "cached",
-        "case",
-        "cast",
-        "change",
-        "class",
-        "column",
-        "columns",
-        "comment",
-        "create",
-        "cross",
-        "data",
-        "database",
-        "databases",
-        "date",
-        "datetime",
-        "desc",
-        "describe",
-        "distinct",
-        "div",
-        "double",
-        "drop",
-        "else",
-        "end",
-        "escaped",
-        "exists",
-        "explain",
-        "external",
-        "fields",
-        "fileformat",
-        "first",
-        "float",
-        "format",
-        "from",
-        "full",
-        "function",
-        "functions",
-        "group",
-        "having",
-        "if",
-        "in",
-        "inner",
-        "inpath",
-        "insert",
-        "int",
-        "integer",
-        "intermediate",
-        "interval",
-        "into",
-        "is",
-        "join",
-        "last",
-        "left",
-        "like",
-        "limit",
-        "lines",
-        "load",
-        "location",
-        "metadata",
-        "not",
-        "null",
-        "offset",
-        "on",
-        "or",
-        "order",
-        "outer",
-        "partition",
-        "partitioned",
-        "partitions",
-        "real",
-        "refresh",
-        "regexp",
-        "rename",
-        "replace",
-        "returns",
-        "right",
-        "row",
-        "schema",
-        "schemas",
-        "select",
-        "set",
-        "show",
-        "stats",
-        "stored",
-        "string",
-        "symbol",
-        "table",
-        "tables",
-        "then",
-        "to",
-        "union",
-        "use",
-        "using",
-        "values",
-        "view",
-        "when",
-        "where",
-        "with",
-    }
-)
-
-
-def quote_identifier(name, quotechar="`", force=False):
-    if force or name.count(" ") or name in _identifiers:
-        return f"{quotechar}{name}{quotechar}"
-    else:
-        return name