boost(169,170), remove static libraries (#7589)

dev-libs/boost/boost169-1.69.0.recipe

@@ -4,7 +4,7 @@ that provide support for tasks and structures such as linear algebra, \
 pseudorandom number generation, multithreading, image processing, regular \
 expressions, and unit testing. It contains over eighty individual libraries."
 HOMEPAGE="https://www.boost.org/"
-SOURCE_URI="https://dl.bintray.com/boostorg/release/$portVersion/source/boost_${portVersion//./_}.tar.bz2"
+SOURCE_URI="https://boostorg.jfrog.io/artifactory/main/release/$portVersion/source/boost_${portVersion//./_}.tar.bz2"
 CHECKSUM_SHA256="8f32d4617390d1c2d16f26a27ab60d97807b35440d45891fa340fc2648b04406"
 REVISION="3"
 LICENSE="Boost v1.0"
@@ -173,7 +173,7 @@ BUILD()
 		inlining=on \
 		threading=multi \
 		variant=release \
-		link=static,shared \
+		link=shared \
 		runtime-link=shared \
 		--without-python
 }
@@ -188,11 +188,13 @@ INSTALL()
 		inlining=on \
 		threading=multi \
 		variant=release \
-		link=static,shared \
+		link=shared \
 		runtime-link=shared \
 		--without-python \
 		install
 
+	rm $libDir/libboost_{chrono,timer,system}.a
+
 	prepareInstalledDevelLibs `echo "$devel_libs" | sed -n \
 		-e "s/devel:\(.*\)$secondaryArchSuffix =.*/\1/p"`