SpirvShaderDebugger: Silence release only warning
SpirvShaderDebugger: Silence release only warning

Bug: b/148401179
Change-Id: I0f9458c8e7c8bb04b3b4443f30bb1b7f6c98d686
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/45354
Tested-by: Ben Clayton <1f693eb7158dc33015048c09d6712f74dabddf79@google.com>
Reviewed-by: Antonio Maiorano <86d87a6550afb6b07035c9743fa181900589f7e0@google.com>
Kokoro-Result: kokoro <2ac7b1f3fa578934c95181d4272be0d3bca00121@google.com>

bkaradzic/SwiftShader,bkaradzic/SwiftShader,google/swiftshader,google/swiftshader,google/swiftshader,bkaradzic/SwiftShader,bkaradzic/SwiftShader,bkaradzic/SwiftShader