Reverted BUMP_SCALE_NOT_SUPPORTED changes. BUMP_SCALE_NOT_SUPPORTED when undefined is now defined to true on mobile platforms.

ScriptableRenderPipeline/LightweightPipeline/LWRP/ShaderLibrary/Core.hlsl

 #endif
 #endif
 
+#ifndef BUMP_SCALE_NOT_SUPPORTED
+#define BUMP_SCALE_NOT_SUPPORTED !SHADER_HINT_NICE_QUALITY
+#endif
+
 ///////////////////////////////////////////////////////////////////////////////
 #ifdef _NORMALMAP
     #define OUTPUT_NORMAL(IN, OUT) OutputTangentToWorld(IN.tangent, IN.normal, OUT.tangent.xyz, OUT.binormal.xyz, OUT.normal.xyz)

ScriptableRenderPipeline/LightweightPipeline/LWRP/ShaderLibrary/InputSurface.hlsl

 half3 Normal(float2 uv)
 {
 #if _NORMALMAP
-    #if !SHADER_HINT_NICE_QUALITY
+    #if BUMP_SCALE_NOT_SUPPORTED
         return UnpackNormal(SAMPLE_TEXTURE2D(_BumpMap, sampler_BumpMap, uv));
     #else
         return UnpackNormalScale(SAMPLE_TEXTURE2D(_BumpMap, sampler_BumpMap, uv), _BumpScale);

ScriptableRenderPipeline/LightweightPipeline/LWRP/ShaderLibrary/Particles.hlsl

 half3 NormalTS(VertexOutputLit IN)
 {
 #if defined(_NORMALMAP)
-    #if !SHADER_HINT_NICE_QUALITY
+    #if BUMP_SCALE_NOT_SUPPORTED
         return UnpackNormal(readTexture(TEXTURE2D_PARAM(_BumpMap, sampler_BumpMap), IN));
     #else
         return UnpackNormalScale(readTexture(TEXTURE2D_PARAM(_BumpMap, sampler_BumpMap), IN), _BumpScale);

ScriptableRenderPipeline/LightweightPipeline/LWRP/Shaders/LightweightStandardParticlesSimpleLighting.shader

             #pragma shader_feature _FADING_ON
             #pragma shader_feature _REQUIRE_UV2
 
+            #define BUMP_SCALE_NOT_SUPPORTED 1
             #define NO_SHADOWS 1
 
             #include "LWRP/ShaderLibrary/Particles.hlsl"