cascade and remove two conflicting packages

.appveyor.yml

@@ -11,9 +11,8 @@ cache:
 
 before_build:
   - git submodule update --init --recursive
-  - C:\msys64\usr\bin\bash -lc "export PATH=/mingw64/bin:/usr/local/bin:/usr/bin:/bin && pacman --noconfirm --remove mingw-w64-x86_64-{gcc-ada,gcc-objc}"
-  - C:\msys64\usr\bin\bash -lc "PATH=/mingw64/bin:/usr/local/bin:/usr/bin:/bin:$PATH && pacman --noconfirm --ask 20 --sync --refresh --sysupgrade"
-  - C:\msys64\usr\bin\bash -lc "PATH=/mingw64/bin:/usr/local/bin:/usr/bin:/bin:$PATH && pacman --noconfirm --sync --refresh pacman git"
+  - C:\msys64\usr\bin\bash -lc "export PATH=/mingw64/bin:/usr/local/bin:/usr/bin:/bin && pacman --noconfirm --remove --cascade mingw-w64-x86_64-{gcc-ada,gcc-objc,termcap,ncurses}" || true
+  - C:\msys64\usr\bin\bash -lc "export PATH=/mingw64/bin:/usr/local/bin:/usr/bin:/bin && pacman --noconfirm --ask 20 --sync --refresh --sysupgrade"
   - C:\msys64\usr\bin\bash -lc "export PATH=/mingw64/bin:/usr/local/bin:/usr/bin:/bin && pacman --noconfirm --needed --sync make mingw-w64-x86_64-{cmake,toolchain,clang,gtkmm3,gtksourceviewmm3,boost,aspell,aspell-en,libgit2}"
 
 build_script: