Remove posixrules

posixrules is a deprecated link used to indicate local time in some
situations (e.g. when TZ is some POSIX string, not a TZif file). We
should not be shipping it.

Author: pganssle

VERSION

@@ -1 +1 @@
-2020.1rc0
+2020.1rc1

src/tzdata/__init__.py

@@ -1,6 +1,6 @@
 # IANA versions like 2020a are not valid PEP 440 identifiers; the recommended
 # way to translate the version is to use YYYY.n where `n` is a 0-based index.
-__version__ = "2020.1rc0"
+__version__ = "2020.1rc1"
 
 # This exposes the original IANA version number.
 IANA_VERSION = "2020a"

src/tzdata/zoneinfo/posixrules

@@ -77,6 +77,10 @@ def test_zone_valid(zone_name):
     assert magic == b"TZif"
 
 
+def test_no_posixrules():
+    assert not resources.is_resource("tzdata.zoneinfo", "posixrules")
+
+
 def test_load_zones(subtests):
     with resources.open_text("tzdata", "zones") as f:
         zones = [z.strip() for z in f]

tests/test_contents.py

@@ -84,7 +84,7 @@ def load_zonefiles(
 
         # First run the makefile, which does all kinds of other random stuff
         subprocess.run(
-            ["make", f"DESTDIR={td}", "ZFLAGS=-b slim", "install"],
+            ["make", f"DESTDIR={td}", "POSIXRULES=", "ZFLAGS=-b slim", "install"],
             cwd=base_dir,
             check=True,
         )