domainnumatune: Remove generate_cpuset helper

This is the function that handled the cpuset=auto old behavior. The last
two commits killed the users, so it's no longer needed

virtinst/domainnumatune.py

@@ -92,57 +92,6 @@ class DomainNumatune(XMLBuilder):
 
         return tuple(pinlist)
 
-    @staticmethod
-    def generate_cpuset(conn, mem):
-        """
-        Generates a cpu pinning string based on host NUMA configuration.
-
-        If host doesn't have a suitable NUMA configuration, a RuntimeError
-        is thrown.
-        """
-        if conn.caps.host.topology is None:
-            raise RuntimeError(_("No topology section in capabilities xml."))
-
-        cells = conn.caps.host.topology.cells
-        if len(cells) <= 1:
-            raise RuntimeError(_("Capabilities only show <= 1 cell. "
-                                 "Not NUMA capable"))
-
-        # Capabilities tells us about the available memory 'cells' on the
-        # system. Each 'cell' has associated 'cpu's.
-        #
-        # Use getCellsFreeMemory to determine which 'cell' has the smallest
-        # amount of memory which fits the requested VM memory amount, then
-        # pin the VM to that 'cell's associated 'cpu's
-
-        cell_mem = conn.getCellsFreeMemory(0, len(cells))
-        cell_id = -1
-        for i in range(len(cells)):
-            if cell_mem[i] < mem:
-                # Cell doesn't have enough mem to fit, skip it
-                continue
-
-            if len(cells[i].cpus) == 0:
-                # No cpus to use for the cell
-                continue
-
-            # Find smallest cell that fits
-            if cell_id < 0 or cell_mem[i] < cell_mem[cell_id]:
-                cell_id = i
-
-        if cell_id < 0:
-            raise RuntimeError(_("Could not find any usable NUMA "
-                                 "cell/cpu combinations."))
-
-        # Build cpuset string
-        cpustr = ""
-        for cpu in cells[cell_id].cpus:
-            if cpustr != "":
-                cpustr += ","
-            cpustr += str(cpu.id)
-
-        return cpustr
-
 
     MEMORY_MODES = ["interleave", "strict", "preferred"]