Bump up RAM requirement and reenable broken demos

These were failing because some WADs require more than a 16MiB heap.

.github/workflows/ci.yml

@@ -30,14 +30,6 @@ jobs:
           sudo apt-get update
           sudo apt-get install make chocolate-doom python3 python3-yaml
 
-      - name: Patch out broken demos
-        run: |
-          # These work in Chocolate Doom HEAD but don't seem to currently
-          # work in the older version in ubuntu-latest.
-          # TODO: Reenable these.
-          grep -v 30av-25337 < demos.txt | grep -v pl2all1.txt > new-demos.txt
-          mv new-demos.txt demos.txt
-
       - name: Run checks
         run: |
           make check

GNUmakefile

@@ -13,7 +13,7 @@ export SDL_VIDEODRIVER = dummy
 
 SOURCE_PORT_NAME = chocolate-doom
 SOURCE_PORT := $(shell which $(SOURCE_PORT_NAME) || echo missing_source_port)
-DOOMOPTS = -mb 16 -nodraw -noblit -nosound \
+DOOMOPTS = -mb 24 -nodraw -noblit -nosound \
            -noautoload -nogui -nograbmouse -nofullscreen
 
 ALL_DEMOS = $(patsubst %,demos/%,$(shell cat demos.txt))