Remove deprecated title template function

This was removed by Go upstream:
golang/go#48367

Signed-off-by: Brandon Mitchell <[email protected]>

Author: sudo-bmitch

docs/README.md

@@ -59,8 +59,6 @@ The following functions have been added in addition to the defaults available in
     Returns current time object, e.g. `{{ $t := time.Now }}{{printf "%d%d%d" $t.Year $t.Month $t.Day}}`.
   - `time.Parse`:
     Parses string using layout into time object, e.g. `{{ $t := time.Parse "2006-01-02" "2020-06-07"}}`.
-- `title`:
-  Makes the first letter of each word uppercase.
 - `upper`:
   Converts a string to uppercase.
 

pkg/template/template.go

@@ -49,7 +49,6 @@ var tmplFuncs = gotemplate.FuncMap{
 	"lower":       strings.ToLower,
 	"split":       strings.Split,
 	"time":        func() *TimeFuncs { return &TimeFuncs{} },
-	"title":       strings.Title,
 	"upper":       strings.ToUpper,
 }