Remove unused methods from CcCompilationContext.

RELNOTES:none
PiperOrigin-RevId: 548667615
Change-Id: If06cb7520d3addf5f9c0eb286e8795af976ce49c

src/main/java/com/google/devtools/build/lib/rules/cpp/CcCompilationContext.java

@@ -635,30 +635,6 @@ ImmutableList<String> getNonTransitiveDefines() {
     return commandLineCcCompilationContext.localDefines;
   }
 
-  /**
-   * Returns a {@code CcCompilationContext} that is based on a given {@code CcCompilationContext}
-   * but returns empty sets for {@link #getLooseHdrsDirs()}.
-   */
-  public static CcCompilationContext disallowUndeclaredHeaders(
-      CcCompilationContext ccCompilationContext) {
-    return new CcCompilationContext(
-        ccCompilationContext.commandLineCcCompilationContext,
-        ccCompilationContext.compilationPrerequisites,
-        NestedSetBuilder.emptySet(Order.STABLE_ORDER),
-        ccCompilationContext.declaredIncludeSrcs,
-        ccCompilationContext.nonCodeInputs,
-        ccCompilationContext.headerInfo,
-        ccCompilationContext.transitiveModules,
-        ccCompilationContext.transitivePicModules,
-        ccCompilationContext.directModuleMaps,
-        ccCompilationContext.exportingModuleMaps,
-        ccCompilationContext.cppModuleMap,
-        ccCompilationContext.propagateModuleMapAsActionInput,
-        ccCompilationContext.headersCheckingMode,
-        ccCompilationContext.virtualToOriginalHeaders,
-        ccCompilationContext.headerTokens);
-  }
-
   /**
    * Returns a {@code CcCompilationContext} that is based on a given {@code CcCompilationContext},
    * with {@code extraHeaderTokens} added to the header tokens.
@@ -696,10 +672,6 @@ public ImmutableList<CppModuleMap> getExportingModuleMaps() {
     return exportingModuleMaps;
   }
 
-  public CppConfiguration.HeadersCheckingMode getHeadersCheckingMode() {
-    return CppConfiguration.HeadersCheckingMode.STRICT;
-  }
-
   public NestedSet<Tuple> getVirtualToOriginalHeaders() {
     return virtualToOriginalHeaders;
   }
@@ -1147,13 +1119,6 @@ public Builder addVirtualToOriginalHeaders(NestedSet<Tuple> virtualToOriginalHea
       return this;
     }
 
-    /** Adds a set of header tokens. */
-    @CanIgnoreReturnValue
-    public Builder addHeaderTokens(Iterable<Artifact> headerTokens) {
-      this.headerTokens.addAll(headerTokens);
-      return this;
-    }
-
     /** Builds the {@link CcCompilationContext}. */
     public CcCompilationContext build() {
       return build(