gnu: openscad: Update to 2021.01 [maybe fixes TALOS-2020-1222, TALOS-2020-1223].

TALOS-2020-1222 has yet to be disclosed and has no known CVE number.
TALOS-2020-1223 has CVE-2020-28599 assigned.

* gnu/packages/engineering.scm (openscad): Update to 2021.01.
[patches]: Remove. Boost 1.72 is supported now upstream.
[arguments]: In replacement 'check phase, disable some tests requiring
experimental "lazy-union" feature. Also disable PDF-related tests requiring
ghostscript and failing either way.
* gnu/local.mk (dist_patch_DATA): Remove patch.
* gnu/packages/patches/openscad-parser-boost-1.72.patch: Ditto.

gnu/packages/engineering.scm

@@ -2476,7 +2476,7 @@ specification can be downloaded at @url{http://3mf.io/specification/}.")
 (define-public openscad
   (package
     (name "openscad")
-    (version "2019.05")
+    (version "2021.01")
     (source
      (origin
        (method url-fetch)
@@ -2484,9 +2484,7 @@ specification can be downloaded at @url{http://3mf.io/specification/}.")
                            ".src.tar.gz"))
        (sha256
         (base32
-         "0nbgk5q5pgnw53la0kccdcpz2f4xf6d6076rkn0q08z57hkc85ha"))
-       (patches (search-patches
-                 "openscad-parser-boost-1.72.patch"))))
+         "0n83szr88h8snccjrslr96mgw3f65x3sq726n6x5vxp5wybw4f6r"))))
     (build-system cmake-build-system)
     (inputs
      `(("boost" ,boost)
@@ -2529,7 +2527,17 @@ specification can be downloaded at @url{http://3mf.io/specification/}.")
              (with-directory-excursion "tests"
                (invoke "cmake" ".")
                (invoke "make")
-               (invoke "ctest"))
+               (invoke "ctest" "--exclude-regex"
+                       (string-join
+                        (list
+                         "astdumptest_allexpressions"
+                         "echotest_function-literal-compare"
+                         "echotest_function-literal-tests"
+                         "echotest_allexpressions"
+                         "lazyunion-*"
+                         "pdfexporttest_centered"
+                         "pdfexporttest_simple-pdf")
+                        "|")))
              ;; strip python test files since lib dir ends up in out/share
              (for-each delete-file
                        (find-files "libraries/MCAD" ".*\\.py"))