dev-R/*: remove AR export no more needed

Signed-off-by: Alessandro Barbieri <lssndrbarbieri@gmail.com>

dev-R/Matrix/Matrix-1.3.4.ebuild

@@ -5,7 +5,7 @@ EAPI=7
 
 MYPV="$(ver_rs 2 -)"
 
-inherit R-packages toolchain-funcs
+inherit R-packages
 
 DESCRIPTION='Sparse and Dense Matrix Classes and Methods'
 KEYWORDS="~amd64"
@@ -17,8 +17,3 @@ DEPEND="
 	virtual/lattice
 "
 RDEPEND="${DEPEND}"
-
-src_prepare() {
-	tc-export AR
-	R-packages_src_prepare
-}

dev-R/RInside/RInside-0.2.16.ebuild

@@ -3,7 +3,7 @@
 
 EAPI=7
 
-inherit R-packages toolchain-funcs
+inherit R-packages
 
 DESCRIPTION='C++ Classes to Embed R in C++ (and C) Applications'
 KEYWORDS="~amd64"
@@ -18,11 +18,6 @@ DEPEND="
 "
 RDEPEND="${DEPEND}"
 
-src_prepare() {
-	tc-export AR
-	R-packages_src_prepare
-}
-
 src_install() {
 	R-packages_src_install
 	find "${D}" -name "*.a" -delete || die

dev-R/commonmark/commonmark-1.7.ebuild

@@ -3,15 +3,10 @@
 
 EAPI=7
 
-inherit R-packages toolchain-funcs
+inherit R-packages
 
 DESCRIPTION='High Performance CommonMark and github markdown rendering in R'
 KEYWORDS="~amd64"
 LICENSE='BSD-2'
 
 RDEPEND="${DEPEND}"
-
-src_prepare() {
-	tc-export AR
-	R-packages_src_prepare
-}

dev-R/hunspell/hunspell-3.0.1.ebuild

@@ -3,7 +3,7 @@
 
 EAPI=7
 
-inherit R-packages toolchain-funcs
+inherit R-packages
 
 DESCRIPTION='High-Performance Stemmer, Tokenizer and Spell Checker'
 KEYWORDS="~amd64"
@@ -20,7 +20,3 @@ RDEPEND="
 "
 
 #bundling status: https://github.com/ropensci/hunspell/issues/34
-src_prepare() {
-	tc-export AR
-	R-packages_src_prepare
-}

dev-R/jsonlite/jsonlite-1.7.2.ebuild

@@ -3,14 +3,10 @@
 
 EAPI=7
 
-inherit R-packages toolchain-funcs
+inherit R-packages
 
 DESCRIPTION='A Simple and Robust JSON Parser and generator for R'
 KEYWORDS="~amd64"
 LICENSE='MIT'
 
 #unbundling status: https://github.com/jeroen/jsonlite/issues/201
-src_prepare() {
-	tc-export AR
-	R-packages_src_prepare
-}

dev-R/utf8/utf8-1.2.2.ebuild

@@ -3,7 +3,7 @@
 
 EAPI="7"
 
-inherit R-packages toolchain-funcs
+inherit R-packages
 
 HOMEPAGE="
 	https://github.com/patperry/r-utf8
@@ -14,8 +14,3 @@ LICENSE='Apache-2.0'
 KEYWORDS="~amd64"
 DEPEND=">=dev-lang/R-2.1.0"
 RDEPEND="${DEPEND}"
-
-src_prepare() {
-	tc-export AR
-	R-packages_src_prepare
-}