build: Fix compiler warning
build: Remove unnecessary flag
vteapp: Remove unreachable code
Revert "terminfo: Fix return values in assertions"

This reverts commit 21e6badc84b658448a4db29ce6651d911e65f7ae.
Revert "build: Remove nonexisting Makefile from output files"

This reverts commit 64836c29c9def4a455870ff4cf5e75410c1d2054.
Revert "all: Use terminfo instead of termcap"

This reverts commit a65aae3bb5cb140a8cf5b6bdda2a5b333c574502.