Removed unused glsl precision qualifiers

Only useful in OpenGL-ES, which is not currently supported

src/render/opengl/shaders/skybox.vert

@@ -1,5 +1,5 @@
-in highp vec4 vertex;
-uniform highp mat4 viewMatrix;
+in vec4 vertex;
+uniform mat4 viewMatrix;
 uniform vec3 cameraLocation;
 out vec3 unprojected;
 

src/render/opengl/shaders/terrain.vert

@@ -1,6 +1,6 @@
-in highp vec4 vertex;
-in highp vec2 uv;
-uniform highp mat4 viewMatrix;
+in vec4 vertex;
+in vec2 uv;
+uniform mat4 viewMatrix;
 out vec3 unprojected;
 out vec2 texcoord;
 uniform float waterOffset;

src/render/opengl/shaders/vegetation.vert

@@ -1,7 +1,7 @@
-in highp vec3 vertex;
-in highp vec2 uv;
-uniform highp mat4 viewMatrix;
-uniform highp vec3 offset;
+in vec3 vertex;
+in vec2 uv;
+uniform mat4 viewMatrix;
+uniform vec3 offset;
 uniform float size;
 out vec3 unprojected;
 out vec2 texcoord;

src/render/opengl/shaders/water.vert

@@ -1,5 +1,5 @@
-in highp vec4 vertex;
-uniform highp mat4 viewMatrix;
+in vec4 vertex;
+uniform mat4 viewMatrix;
 uniform float waterHeight;
 uniform vec3 cameraLocation;
 out vec3 unprojected;