Remove -ddump-srts flag

This flag is deemed not useful.

compiler/GHC/Cmm/Info/Build.hs

@@ -31,7 +31,6 @@ import GHC.Runtime.Heap.Layout
 import UniqSupply
 import CostCentre
 import GHC.StgToCmm.Heap
-import ErrUtils
 
 import Control.Monad
 import Data.Map.Strict (Map)
@@ -802,9 +801,6 @@ doSRTs dflags moduleSRTInfo procs data_ = do
       (srt_declss, pairs, funSRTs, has_caf_refs) = unzip4 result
       srt_decls = concat srt_declss
 
-  unless (null srt_decls) $
-    dumpIfSet_dyn dflags Opt_D_dump_srts "SRTs" FormatCMM (ppr srt_decls)
-
   -- Next, update the info tables with the SRTs
   let
     srtFieldMap = mapFromList (concat pairs)

compiler/main/DynFlags.hs

@@ -427,7 +427,6 @@ data DumpFlag
    | Opt_D_dump_cmm_split
    | Opt_D_dump_cmm_info
    | Opt_D_dump_cmm_cps
-   | Opt_D_dump_srts
    -- end cmm subflags
    | Opt_D_dump_cfg_weights -- ^ Dump the cfg used for block layout.
    | Opt_D_dump_asm
@@ -3360,8 +3359,6 @@ dynamic_flags_deps = [
         (setDumpFlag Opt_D_dump_cmm_info)
   , make_ord_flag defGhcFlag "ddump-cmm-cps"
         (setDumpFlag Opt_D_dump_cmm_cps)
-  , make_ord_flag defGhcFlag "ddump-srts"
-        (setDumpFlag Opt_D_dump_srts)
   , make_ord_flag defGhcFlag "ddump-cfg-weights"
         (setDumpFlag Opt_D_dump_cfg_weights)
   , make_ord_flag defGhcFlag "ddump-core-stats"