bin: remove unused import in buildinfo.py

This was originally added in b1c30f0650 and it now do nothing since 361556a6a7 because it now use readprops.

bin/buildinfo.py

@@ -1,9 +1,8 @@
 #!/usr/bin/env python3
-import configparser
 import sys
+
 from readprops import readProps
 
-
-verObj = readProps('version.properties')
+verObj = readProps("version.properties")
 propName = sys.argv[1]
 print(f"{verObj[propName]}")