Temporarily remove -check-all-apis from header-abi-diff invocation.

-check-all-apis currently, produces noise for some libraries
(eg:libstagefright_soft_vpxenc), so remove this till a good solution
arrives.

Bug: 79928919

Test: create abi reference for libstagefright_soft_vpxenc; m -j
      libstagefright_soft_vpxenc.vendor; no warnings about struct LAYER_CONTEXT
      layout changing.

Change-Id: I8f30700c1b619c72504ca9aef69075f6e334ba5f