Issue #1497 Revert "Check if there are any unpreprocessed files"

This reverts PR #429

python/mozbuild/mozbuild/mach_commands.py

@@ -541,16 +541,6 @@ class Build(MachCommandBase):
                 # as when doing OSX Universal builds)
                 pass
 
-        # Check if there are any unpreprocessed files in '@MOZ_OBJDIR@/dist/bin'
-        # See python/mozbuild/mozbuild/preprocessor.py#L293-L309 for the list of directives
-        # We skip if, ifdef, ifndef, else, elif, elifdef and elifndef, because they are never used alone
-        grepcmd = 'grep -E -r "^(#|%)(define|endif|error|expand|filter|include|literal|undef|unfilter)" '\
-                  + '--include=\*.{css,dtd,html,js,jsm,xhtml,xml,xul,manifest,properties,rdf} '\
-                  + self.topobjdir + '/dist/bin | awk "/\.css:%/ || (!/\.css/ && /:#/)"'
-        grepresult = subprocess.Popen(grepcmd, stdout=subprocess.PIPE, shell=True).communicate()[0]
-        if grepresult:
-            print('\nERROR: preprocessor was not applied to the following files:\n\n' + grepresult)
-
         return status
 
     @Command('configure', category='build',