package: drop creating spurious tmp directory in feed directory

package: drop creating spurious tmp directory in feed directory

In implementing APK support it seems a a leftover was never removed that
creates an unused tmp directory in the package feed directory.

Drop it as it's not used anywhere. What is actually needed is the
creation of the $$(PDIR_$(1)) directory for the feed package directory
in the bin/packages directory.

This was a side effect of using INSTALL_DIR on $$(PDIR_$(1))/tmp that
indirectly creates the $$(PDIR_$(1)) parent directory.

Fixes: d788ab376f85 ("build: add APK package build capabilities")
Signed-off-by: Christian Marangi <[email protected]>