cmd/api: remove debug/pe replated changes from next.txt

See CL 22720 for details.

Updates #15345

Change-Id: If93ddbb8137d57da9846b671160b4cebe1992570
Reviewed-on: https://go-review.googlesource.com/22752Reviewed-by: David Crawshaw <crawshaw@golang.org>

api/next.txt

@@ -147,14 +147,6 @@ pkg debug/elf, const R_390_TLS_TPOFF R_390
 pkg debug/elf, method (R_390) GoString() string
 pkg debug/elf, method (R_390) String() string
 pkg debug/elf, type R_390 int
-pkg debug/pe, method (StringTable) String(uint32) (string, error)
-pkg debug/pe, type File struct, StringTable StringTable
-pkg debug/pe, type Reloc struct
-pkg debug/pe, type Reloc struct, SymbolTableIndex uint32
-pkg debug/pe, type Reloc struct, Type uint16
-pkg debug/pe, type Reloc struct, VirtualAddress uint32
-pkg debug/pe, type Section struct, Relocs []Reloc
-pkg debug/pe, type StringTable []uint8
 pkg encoding/json, method (*Encoder) DisableHTMLEscaping()
 pkg encoding/json, method (*Encoder) Indent(string, string)
 pkg go/build, type Package struct, CgoFFLAGS []string