qb: Don't overwrite defaults

Haiku really should use the configure flags provided, that is why they exists.

In this case.

./configure \
  --global-config-dir=$PREFIX/settings
  --with-assets_dir=$PREFIX/data
  --with-mand_dir=$PREFIX/documentation/man

Changing the defaults just makes the script more complicated for no good reason.

qb/config.libs.sh

@@ -10,15 +10,10 @@ add_define MAKEFILE NOUNUSED_VARIABLE "$HAVE_NOUNUSED_VARIABLE"
 [ -z "$CROSS_COMPILE" ] && [ -d /opt/local/lib ] && add_dirs LIBRARY /opt/local/lib
 
 [ "$GLOBAL_CONFIG_DIR" ] || \
-{
-	if [ "$OS" = 'Haiku' ]; then
-		GLOBAL_CONFIG_DIR="$PREFIX"/settings
-	else
-		case "$PREFIX" in
-			/usr*) GLOBAL_CONFIG_DIR=/etc ;;
-			*) GLOBAL_CONFIG_DIR="$PREFIX"/etc ;;
-		esac
-	fi
+{	case "$PREFIX" in
+		/usr*) GLOBAL_CONFIG_DIR=/etc ;;
+		*) GLOBAL_CONFIG_DIR="$PREFIX"/etc ;;
+	esac
 }
 
 DYLIB=-ldl;
@@ -162,16 +157,9 @@ fi
    add_define MAKEFILE libretro "$LIBRETRO"
 }
 
-
-if [ "$OS" = 'Haiku' ]; then
-add_define MAKEFILE ASSETS_DIR "${ASSETS_DIR:-${PREFIX}/data}"
-add_define MAKEFILE MAN_DIR "${MAN_DIR:-${PREFIX}/documentation/man}"
-else
 add_define MAKEFILE ASSETS_DIR "${ASSETS_DIR:-${PREFIX}/share}"
-add_define MAKEFILE MAN_DIR "${MAN_DIR:-${PREFIX}/share/man}"
-fi
-
 add_define MAKEFILE BIN_DIR "${BIN_DIR:-${PREFIX}/bin}"
+add_define MAKEFILE MAN_DIR "${MAN_DIR:-${PREFIX}/share/man}"
 
 if [ "$OS" = 'DOS' ]; then
    HAVE_SHADERPIPELINE=no

qb/qb.libs.sh

@@ -1,11 +1,7 @@
 MAKEFILE_DEFINES=''
 CONFIG_DEFINES=''
 
-if [ "$OS" = 'Haiku' ]; then
-	[ "$PREFIX" ] || PREFIX="/boot/home/config/non-packaged"
-else
-	[ "$PREFIX" ] || PREFIX="/usr/local"
-fi
+[ "$PREFIX" ] || PREFIX="/usr/local"
 
 add_define() # $1 = MAKEFILE or CONFIG $2 = define $3 = value
 { eval "${1}_DEFINES=\"\${${1}_DEFINES} $2=$3\""; }