Revert manually changed md to main branch:

Author: DrewScatterday

docs/functions.md

@@ -1059,15 +1059,7 @@ ANY ST_GeometryType (col0 WKB_BLOB)
 
 #### Description
 
-Returns a 'GEOMETRY_TYPE' enum identifying the input geometry type. Possible enum return types are: `POINT`, `LINESTRING`, `POLYGON`, `MULTIPOINT`, `MULTILINESTRING`, `MULTIPOLYGON`, and `GEOMETRYCOLLECTION`
-
-#### Example
-
-```sql
-SELECT DISTINCT ST_GeometryType(ST_GeomFromText('POINT(1 1)'));
-----
-POINT  
-```
+Returns a 'GEOMETRY_TYPE' enum identifying the input geometry type.
 
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