How to clean '.camel' directories?

The process works on a schedule. Recursively searches the directory. Found
files are processed and fall into a subdirectory named '.camel'.

path_a
path_b
path_b_a
.camel
path_b_b
.camel
path_c
path_c_a
.camel
path_c_b
.camel

Camel route:

from("file:path_a?recursive=true")
.process("myprocess");

Do the contents of the cleaning solution '.camel' of old files?