bitbake.conf/base.bbclass: Drop PRINC support

index c6494e3..d19d9e1 100644
@@ -394,22 +394,6 @@ python () {
         else:
             appendVar('EXTRA_OECONF', extraconf)
 
-    # If PRINC is set, try and increase the PR value by the amount specified
-    # The PR server is now the preferred way to handle PR changes based on
-    # the checksum of the recipe (including bbappend).  The PRINC is now
-    # obsolete.  Return a warning to the user.
-    princ = d.getVar('PRINC', True)
-    if princ and princ != "0":
-        bb.error("Use of PRINC %s was detected in the recipe %s (or one of its .bbappends)\nUse of PRINC is deprecated.  The PR server should be used to automatically increment the PR.  See: https://wiki.yoctoproject.org/wiki/PR_Service." % (princ, d.getVar("FILE", True)))
-        pr = d.getVar('PR', True)
-        pr_prefix = re.search("\D+",pr)
-        prval = re.search("\d+",pr)
-        if pr_prefix is None or prval is None:
-            bb.error("Unable to analyse format of PR variable: %s" % pr)
-        nval = int(prval.group(0)) + int(princ)
-        pr = pr_prefix.group(0) + str(nval) + pr[prval.end():]
-        d.setVar('PR', pr)
-
     pn = d.getVar('PN', True)
     license = d.getVar('LICENSE', True)
     if license == "INVALID":

index f544a71..8653a7f 100644
@@ -182,7 +182,6 @@ ASSUME_PROVIDED = "\
 PN = "${@bb.parse.BBHandler.vars_from_file(d.getVar('FILE'),d)[0] or 'defaultpkgname'}"
 PV = "${@bb.parse.BBHandler.vars_from_file(d.getVar('FILE'),d)[1] or '1.0'}"
 PR = "${@bb.parse.BBHandler.vars_from_file(d.getVar('FILE'),d)[2] or 'r0'}"
-PRINC ?= "0"
 PF = "${PN}-${EXTENDPE}${PV}-${PR}"
 EXTENDPE = "${@['','${PE\x7d_'][int(d.getVar('PE',1) or 0) > 0]}"
 P = "${PN}-${PV}"