Remove netlify hack

https://twitter.com/GoHugoIO/status/1106282569161687042

netlify.toml

@@ -1,6 +1,6 @@
 [build]
   publish = "public"
-  command = "./scripts/netlify.sh"
+  command = "./scripts/build.sh"
 
 [build.environment]
   HUGO_VERSION = "0.52"

scripts/netlify.sh

@@ -1,17 +0,0 @@
-#!/usr/bin/env bash
-
-# https://github.com/netlify/build-image/issues/183#issuecomment-419199649
-
-HUGO_FLAVOUR="hugo_extended"
-
-rm -rf *.deb
-wget --no-clobber http://security.ubuntu.com/ubuntu/pool/main/g/gcc-5/libstdc++6_5.4.0-6ubuntu1~16.04.10_amd64.deb || exit 1
-wget --no-clobber https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/${HUGO_FLAVOUR}_${HUGO_VERSION}_Linux-64bit.deb || exit 1
-grep "hugo=" ~/.bashrc || echo "alias hugo='LD_LIBRARY_PATH=$(pwd)/tmp/usr/lib/x86_64-linux-gnu $(pwd)/tmp/usr/local/bin/hugo'" >> ~/.bashrc
-find -name '*.deb' -exec dpkg -x {} $(pwd)/tmp \;
-rm -rf *.deb
-
-export LD_LIBRARY_PATH=$(pwd)/tmp/usr/lib/x86_64-linux-gnu
-export PATH=$(pwd)/tmp/usr/local/bin:$PATH
-
-./scripts/build.sh