Revert "Split asm and c flags and srcs in bp2build output"

Revert submission 1714835-roboleaf-asm-c

Reason for revert: TestCcLibraryStaticProductVariableSelects fails everywhere
Reverted Changes:
I28cf7437e:Split asm and c flags and srcs in bp2build output
I2b47e6b55:Split libraries by language in cc_library_static

Change-Id: I85d39a462f0a5b3f5ff3d685906813fab9f01358
diff --git a/bp2build/cc_library_conversion_test.go b/bp2build/cc_library_conversion_test.go
index 454b153..0a72937 100644
--- a/bp2build/cc_library_conversion_test.go
+++ b/bp2build/cc_library_conversion_test.go
@@ -311,7 +311,7 @@
         "//build/bazel/platforms/arch:arm64": ["-DHAVE_FAST_FMA=1"],
         "//conditions:default": [],
     }),
-    srcs_c = ["math/cosf.c"],
+    srcs = ["math/cosf.c"],
 )`},
 	})
 }
@@ -618,7 +618,7 @@
 
 func TestCcLibraryCppFlagsGoesIntoCopts(t *testing.T) {
 	runCcLibraryTestCase(t, bp2buildTestCase{
-		description:                        "cc_library cppflags usage",
+		description:                        "cc_library cppflags goes into copts",
 		moduleTypeUnderTest:                "cc_library",
 		moduleTypeUnderTestFactory:         cc.LibraryFactory,
 		moduleTypeUnderTestBp2BuildMutator: cc.CcLibraryBp2Build,
@@ -654,12 +654,10 @@
     name = "a",
     copts = [
         "-Wall",
-        "-Ifoo/bar",
-        "-I$(BINDIR)/foo/bar",
-    ],
-    cppflags = [
         "-fsigned-char",
         "-pedantic",
+        "-Ifoo/bar",
+        "-I$(BINDIR)/foo/bar",
     ] + select({
         "//build/bazel/platforms/arch:arm64": ["-DARM64=1"],
         "//conditions:default": [],