Revert of Rework default GN symbol handling for win goma builds.

build/config/compiler/compiler.gni

Index: build/config/compiler/compiler.gni
diff --git a/build/config/compiler/compiler.gni b/build/config/compiler/compiler.gni
index 9f59f84f64560a9cf867eaa31ee52b13b737181d..2e5072e2589133090ed96f857b216186ee3a6836 100644
--- a/build/config/compiler/compiler.gni
+++ b/build/config/compiler/compiler.gni
@@ -82,13 +82,6 @@
     # With instrumentation enabled, debug info puts libchrome.so over 4gb, which
     # causes the linker to produce an invalid ELF. http://crbug.com/574476
     symbol_level = 0
-  } else if (is_win && use_goma && !is_clang) {
-    # goma doesn't support PDB files, so we disable symbols during goma
-    # compilation because otherwise the redundant debug information generated
-    # by visual studio (repeated in every .obj file) makes linker
-    # memory consumption and link times unsustainable (crbug.com/630074).
-    # Clang on windows does not have this issue.
-    symbol_level = 1
   } else if (!is_linux || is_debug || is_official_build || is_chromecast) {
     # Linux is slowed by having symbols as part of the target binary, whereas
     # Mac and Windows have them separate, so in Release Linux, default them off,