assets/specTemplate: don't define cpu count

assets/specTemplate.cfg

@@ -45,10 +45,6 @@
 %   define  bits        64     #      you can set it on the command line using:
 %endif                         #      'runcpu --define bits=nn'
 
-%ifndef %{build_ncpus}         # EDIT to adjust number of simultaneous compiles.
-%   define  build_ncpus 8      #      Or, you can set it on the command line:
-%endif                         #      'runcpu --define build_ncpus=nn'
-
 # Don't change this part.
 %define    os           LINUX
 %if %{bits} == 64
@@ -72,7 +68,6 @@ iterations           = 1
 label                = %{label}-m%{bits}
 line_width           = 1020
 log_line_width       = 1020
-makeflags            = --jobs=%{build_ncpus}
 mean_anyway          = 1
 output_format        = txt,html,cfg,pdf,csv
 preenv               = 1