Remove building test.c from the Posix compilation script

compile

@@ -64,8 +64,3 @@ fi
 
 # Compile library
 (set -x ; $CC $CFLAGS $LIBFLAGS $INCLUDE $SRC -o $OUT)
-
-# Compile test.c if it exists
-if [[ -f ./test.c ]]; then
-  (set -x ; $CC $CFLAGS $INCLUDE $SRC ./test.c -o test)
-fi