nimsuggest: sane dirty buffer handling

compiler/options.nim

@@ -114,18 +114,12 @@ var
   gLastCmdTime*: float        # when caas is enabled, we measure each command
   gListFullPaths*: bool
   isServing*: bool = false
-  gDirtyBufferIdx* = 0'i32    # indicates the fileIdx of the dirty version of
-                              # the tracked source X, saved by the CAAS client.
-  gDirtyOriginalIdx* = 0'i32  # the original source file of the dirtified buffer.
   gNoNimblePath* = false
   gExperimentalMode*: bool
 
 proc importantComments*(): bool {.inline.} = gCmd in {cmdDoc, cmdIdeTools}
 proc usesNativeGC*(): bool {.inline.} = gSelectedGC >= gcRefc
 
-template isWorkingWithDirtyBuffer*: expr =
-  gDirtyBufferIdx != 0
-
 template compilationCachePresent*: expr =
   {optCaasEnabled, optSymbolFiles} * gGlobalOptions != {}