healthd.sh: Drop PATH manipulations

Altering PATH shouldn't be needed, everything that is required should
be already available.

prog/daemon/healthd.sh

@@ -14,15 +14,12 @@
 #		   get something better written. :')
 #
 # Requirements -- mail, sensors, bash, sleep
-#		  (You may need to alter the PATH, but probably not.)
 #
 # Written & Copyrighten by Philip Edelbrock, 1999.
 #
 # Version: 1.1
 #
 
-PATH="/bin:/usr/bin:/usr/local/bin:${PATH}"
-
 ADMIN_EMAIL="root@localhost"
 
 # Try loading the built-in sleep implementation to avoid spawning a