CI: Drop ghc-8.0.2 from the build matrix

Was failing with "simplifier ticks exhausted" with that GHC version
and the new inlining.

Author: erikd

.github/workflows/haskell-ci.yml

@@ -92,11 +92,6 @@ jobs:
             compilerVersion: 8.2.2
             setup-method: ghcup
             allow-failure: false
-          - compiler: ghc-8.0.2
-            compilerKind: ghc
-            compilerVersion: 8.0.2
-            setup-method: ghcup
-            allow-failure: false
       fail-fast: false
     steps:
       - name: apt-get install
@@ -211,8 +206,8 @@ jobs:
           touch cabal.project
           touch cabal.project.local
           echo "packages: ${PKGDIR_vector_algorithms}" >> cabal.project
-          if [ $((HCNUMVER >= 80200)) -ne 0 ] ; then echo "package vector-algorithms" >> cabal.project ; fi
-          if [ $((HCNUMVER >= 80200)) -ne 0 ] ; then echo "    ghc-options: -Werror=missing-methods" >> cabal.project ; fi
+          echo "package vector-algorithms" >> cabal.project
+          echo "    ghc-options: -Werror=missing-methods" >> cabal.project
           cat >> cabal.project <<EOF
           EOF
           $HCPKG list --simple-output --names-only | perl -ne 'for (split /\s+/) { print "constraints: any.$_ installed\n" unless /^(vector-algorithms)$/; }' >> cabal.project.local

vector-algorithms.cabal

@@ -30,7 +30,6 @@ tested-with:
   GHC == 8.6.5
   GHC == 8.4.4
   GHC == 8.2.2
-  GHC == 8.0.2
 
 flag BoundsChecks
   description: Enable bounds checking