[bug#38106] [PATCH] gnu: mrustc: Update to 0.8.1.

[Danny Milosavljevic]

* 
gnu/packages/patches/mrustc-0.8.0-fix-variable-length-integer-receiving.patch: 
Delete file.
* gnu/local.mk (dist_patch_DATA): Remove it.
* gnu/packages/rust.scm (mrustc): Update to 0.8.1.
[source](patches): Remove it.
---
 gnu/local.mk                                      |  1 -
 ....0-fix-variable-length-integer-receiving.patch | 15 ---------------
 gnu/packages/rust.scm                             |  6 ++----
 3 files changed, 2 insertions(+), 20 deletions(-)
 delete mode 100644 
gnu/packages/patches/mrustc-0.8.0-fix-variable-length-integer-receiving.patch

diff --git a/gnu/local.mk b/gnu/local.mk
index 2513b4003c..5f52372875 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -1140,7 +1140,6 @@ dist_patch_DATA =                                         
\
   %D%/packages/patches/mozjs38-tracelogger.patch               \
   %D%/packages/patches/mozjs38-version-detection.patch         \
   %D%/packages/patches/mrrescue-support-love-11.patch          \
-  
%D%/packages/patches/mrustc-0.8.0-fix-variable-length-integer-receiving.patch \
   %D%/packages/patches/mtools-mformat-uninitialized.patch      \
   %D%/packages/patches/mumble-1.2.19-abs.patch                 \
   %D%/packages/patches/mumps-build-parallelism.patch           \
diff --git 
a/gnu/packages/patches/mrustc-0.8.0-fix-variable-length-integer-receiving.patch 
b/gnu/packages/patches/mrustc-0.8.0-fix-variable-length-integer-receiving.patch
deleted file mode 100644
index 9e76653a07..0000000000
--- 
a/gnu/packages/patches/mrustc-0.8.0-fix-variable-length-integer-receiving.patch
+++ /dev/null
@@ -1,15 +0,0 @@
-https://github.com/thepowersgang/mrustc/issues/109
-From: Danny Milosavljevic <address@hidden>
-Date: Fri, 3 Jan 2019 13:00:00 +0100
-
---- mrustc/src/expand/proc_macro.cpp.orig      2019-02-01 14:16:54.208486062 
+0100
-+++ mrustc/src/expand/proc_macro.cpp   2019-02-01 14:17:14.350925705 +0100
-@@ -977,7 +977,7 @@
-     for(;;)
-     {
-         auto b = recv_u8();
--        v |= static_cast<uint64_t>(b) << ofs;
-+        v |= static_cast<uint64_t>(b & 0x7F) << ofs;
-         if( (b & 0x80) == 0 )
-             break;
-         ofs += 7;
diff --git a/gnu/packages/rust.scm b/gnu/packages/rust.scm
index f3fee4c126..eefdec8e0d 100644
--- a/gnu/packages/rust.scm
+++ b/gnu/packages/rust.scm
@@ -91,7 +91,7 @@
   (let ((rustc-version "1.19.0"))
     (package
       (name "mrustc")
-      (version "0.8.0")
+      (version "0.8.1")
       (source (origin
                 (method git-fetch)
                 (uri (git-reference
@@ -100,9 +100,7 @@
                 (file-name (git-file-name name version))
                 (sha256
                  (base32
-                  "0a7v8ccyzp1sdkwni8h1698hxpfz2sxhcpx42n6l2pbm0rbjp08i"))
-                (patches
-                 (search-patches 
"mrustc-0.8.0-fix-variable-length-integer-receiving.patch"))))
+                  "00800zckq009kf9v3hb8kp1svryvq3jpg4439ksm3wcidjvszdzc"))))
       (outputs '("out" "cargo"))
       (build-system gnu-build-system)
       (inputs