Description of bug
When using r.import with -e flag the estimated resolution should be obtained, without importing the raster (or rather only temporary).
When applying this for a raster, where no reprojection is required, no estimated resolution is calculated/printed and the temporary import map is kept.

To Reproduce
Steps to reproduce the behavior:

1. Start a GRASS session within NC SPM sample location (e.g. grass ~/grassdata/nc_spm_08/bug_rimport_eflag -c)
2. Ensure empty mapset: g.list raster
3. Estimate resolution only, for data in same projection: r.import input=https://github.com/OSGeo/grass/raw/main/raster/r.in.gdal/testsuite/data/elevation.tif -e
4. Check, if new raster map in mapset: g.list raster
5. Bug: See raster maprimport_tmp within mapset + missing message for estimated resolution

Expected behavior
No raster map imported or rather cleaned up in the end + a clear message of estimated/read resolution or a message, that no estimated resolution is/could be calculated.

System description:

• Operating System: Linux Mint 21.2 Cinnamon (Cinnamon-Version: 5.8.4)
• GRASS GIS version: GRASS 8.4.0dev (2023)