Remove GCC-specific toolchain methods

Test: m
Change-Id: I06442347ade2d60bc42131b3126ecc17840c9e31

cc/config/mips64_device.go

@@ -69,9 +69,6 @@ func init() {
 	pctx.SourcePathVariable("Mips64GccRoot",
 		"prebuilts/gcc/${HostPrebuiltTag}/mips/mips64el-linux-android-${mips64GccVersion}")
 
-	pctx.StaticVariable("Mips64Cflags", strings.Join(mips64Cflags, " "))
-	pctx.StaticVariable("Mips64Ldflags", strings.Join(mips64Ldflags, " "))
-	pctx.StaticVariable("Mips64Cppflags", strings.Join(mips64Cppflags, " "))
 	pctx.StaticVariable("Mips64IncludeFlags", bionicHeaders("mips"))
 
 	// Clang cflags
@@ -83,7 +80,6 @@ func init() {
 
 	// Architecture variant cflags
 	for variant, cflags := range mips64ArchVariantCflags {
-		pctx.StaticVariable("Mips64"+variant+"VariantCflags", strings.Join(cflags, " "))
 		pctx.StaticVariable("Mips64"+variant+"VariantClangCflags",
 			strings.Join(ClangFilterUnknownCflags(cflags), " "))
 	}
@@ -91,8 +87,8 @@ func init() {
 
 type toolchainMips64 struct {
 	toolchain64Bit
-	cflags, clangCflags                   string
-	toolchainCflags, toolchainClangCflags string
+	clangCflags          string
+	toolchainClangCflags string
 }
 
 func (t *toolchainMips64) Name() string {
@@ -111,22 +107,6 @@ func (t *toolchainMips64) GccVersion() string {
 	return mips64GccVersion
 }
 
-func (t *toolchainMips64) ToolchainCflags() string {
-	return t.toolchainCflags
-}
-
-func (t *toolchainMips64) Cflags() string {
-	return t.cflags
-}
-
-func (t *toolchainMips64) Cppflags() string {
-	return "${config.Mips64Cppflags}"
-}
-
-func (t *toolchainMips64) Ldflags() string {
-	return "${config.Mips64Ldflags}"
-}
-
 func (t *toolchainMips64) IncludeFlags() string {
 	return "${config.Mips64IncludeFlags}"
 }
@@ -166,9 +146,7 @@ func (toolchainMips64) LibclangRuntimeLibraryArch() string {
 
 func mips64ToolchainFactory(arch android.Arch) Toolchain {
 	return &toolchainMips64{
-		cflags:               "${config.Mips64Cflags}",
 		clangCflags:          "${config.Mips64ClangCflags}",
-		toolchainCflags:      "${config.Mips64" + arch.ArchVariant + "VariantCflags}",
 		toolchainClangCflags: "${config.Mips64" + arch.ArchVariant + "VariantClangCflags}",
 	}
 }